Power ratings 30 W Input voltage 100 to 240 VAC Output voltage 24 VDC 1.3 A Output current Model ZEN-PA03024
Note: Refer to the ZEN-PA03024 Datasheet (Cat. No. L103) for detailed specifications.
Accessories (Order Separately)
Name Specifications Remarks Enables programs and parameter settings to be saved or copied to another ZEN. (See note 1.) LCD-type CPU Unit with LED-type CPU Unit without display (See note 2.) display (See note 3.) Transfer from ZEN to Memory Transfer from Memory Cassette to ZEN Memory Cassette initialization Connecting Cable 2 m RS-232C (9-pin Dsub connector) Battery Unit --Supported Supported Supported Not supported Automatic transfer when power turned ON Not supported ZEN-CIF01 Model ZEN-ME01 Memory Cassette EEPROM (for data security and copying)
10 years min. Battery life Ladder programs and parameter settings are saved to the CPU Unit EEP-ROM ZEN-BAT01 (at 25C) but calendar, clock, and holding timer bits and holding timer/counter present values are held by the capacitor. Therefore, if the power supply is interrupted for 2 days or more (at 25C), this data will be reset. Use a Battery Unit for systems where the power supply may be interrupted for long periods. Runs on Windows 95, 98, Specifically designed for the ZEN (CD-ROM). 2000, ME, XP, NT 4.0, Vista or 7. (See note 4.) ZEN-SOFT01-V4

ZEN Support Software

Note: 1. Memory Cassettes created using a CPU Unit can be read to other CPU Units, regardless of which model is used. Restrictions, apply, however, to the functions that can be used, depending on the CPU Unit version combination. For details, refer to Memory Cassette and CPU Unit Combinations on page 31. 2. Standard LCD-type, Economy-type, and Communications-type CPU Units (i.e., excluding ZEN-@C2@@-@-V2 models). 3. LED-type CPU Unit without display (i.e., ZEN-@C2@@-@-V2 models). 4. Except for 64-bit versions of Windows.
Mounting Accessories (Order Separately)
Name Mounting Track Specifications 50 cm (l) 7.3 mm (t) 1 m (l) 7.3 mm (t) 1 m (l) 16 mm (t) End Plate Spacer Model PFP-50N PFP-100N PFP-100N2 PFP-M PFP-S

System Configuration

Power Supply Unit Battery Unit CPU Unit Expansion I/O Units

Connecting Cable

Memory Cassette
Note: 1. Up to 3 Expansion I/O Units can be connected to any type of CPU Unit except for Economy-type CPU Units. Expansion I/O Units with AC Inputs, however, cannot be connected to CPU Units with DC Power Supplies. 2. The Connecting Cable and Memory Cassette cannot be connected to the ZEN at the same time. 3. Programs cannot be written to LED-type CPU Units (i.e., ZEN-@C2@@-@-V2 models) without the ZEN Support Software or a Memory Cassette.

Specifications

Ratings
Item ZEN-@C@AR-A-V2/ZEN-8E1AR Rated supply voltage Operating voltage range Power consumption 100 to 240 VAC, 50/60 Hz 85 to 264 VAC CPU Units without Expansion I/O Units ZEN-10C1AR-A-V2/ZEN-10C2AR-A-V2/ ZEN-10C3AR-A-VV AC: 5 VA max. 240 V AC: 7 VA max. ZEN-10C4AR-A-VV AC: 6 VA max. 240 V AC: 8 VA max. ZEN-20C@AR-A-VV AC: 7 VA max. 240 V AC: 10 VA max. CPU Units with three Expansion I/O Units ZEN-10C1AR-A-V2/ZEN-10C2AR-A-VV AC: 6 VA max. 240 V AC: 8 VA max. ZEN-10C4AR-A-VV AC: 7 VA max. 240 V AC: 9 VA max. ZEN-20C@AR-A-VV AC: 8 VA max. 240 V AC: 11 VA max. Expansion I/O Units ZEN-8E1AR 100 V AC: 3 VA max. 240 V AC: 4 VA max. Inrush current ZEN-10C@AR-A-V2: 4.5 A max. ZEN-20C@AR-A-V2: 4.5 A max. ZEN-8E1AR: 4 A max. 0 to 55C (25 to 55C for ZEN-@C2@@-@-V2 models) 10% to 90% (with no condensation) No corrosive gases Surface mounting, DIN track mounting (standard (vertical) installation and horizontal installation) (See notes 1 and 2.) Solid-line terminal block (use solid wire or fine-stranded wire) 0.565 to 0.6 Nm (5 to 5.3 in-lb) IP20 (Mounted inside a control panel) Specification ZEN-@C@D@-D-V2/ZEN-8E1D@ 12 to 24 VDC (DC ripple rate: 5% max.) 10.8 to 28.8 VDC CPU Units without Expansion I/O Units ZEN-10C@DR-D-V2 12/24 V DC: 3 W max. (ZEN-10C3DR-D-V2: 2.8 W max.) ZEN-10C@DT-D-V2 12/24 V DC: 2 W max. ZEN-20C@DR-D-V2 12/24 V DC: 4 W max. ZEN-20C@DT-D-V2 12/24 V DC: 2 W max. CPU Units with three Expansion I/O Units ZEN-10C@DR-D-V2 12/24 V DC: 4 W max. ZEN-10C@DT-D-V2 12/24 V DC: 3 W max. ZEN-20C@DR-D-V2 12/24 V DC: 5 W max. ZEN-20C@DT-D-V2 12/24 V DC: 3 W max. Expansion I/O Units ZEN-8E1DR 12/24 V DC: 2 W max.
ZEN-10C@D@-D-V2: 30 A max. ZEN-20C@D@-D-V2: 30 A max. ZEN-8E1DR: 15 A max.
Ambient temperature Ambient humidity Ambient conditions Mounting method Terminal block Terminal screw tightening torque Degree of protection
Ambient storage temperature 20 to 75C (40 to 75C for ZEN-@C2@@-@-V2 models)
Note: 1. Can be mounted to 35-mm DIN Track. 2. Standard (Vertical) installation Horizontal installation

Characteristics

Item Control method I/O control method Programming language Program capacity Max. No. of control I/O points Stored program control Cyclic scan Ladder diagram 96 lines (3 input conditions and 1 output per line) 44 points (See note 1.) CPU Units with 20 I/O points: 12 inputs and 8 outputs Expansion I/O Units: 4 inputs and 4 outputs each, up to 3 Units. 12 characters 4 lines, with backlight Internal EEPROM, Memory Cassette (optional) Internal holding bit status, holding timer/counter present values, calendar and clock (year, month, day of month, day of week, time) Super capacitor backup time:2 days min. (25C) Life of optional battery: 10 years min. (25C) Accuracy: 15 s/month (at 25C) 0.01 s unit: 0.05% 10 ms max. (rate for set value) min/s unit: 0.05% 1 s max. (rate for set value) h/min unit: 0.05% 1 min max. (rate for set value) 150 Hz: 8-Digit counter (F) set to high-speed operations (CPU Units with DC power supplies only) (The counting speed may be less than 150 Hz depending on the cycle time of the program. See page 21.) 20 M (at 500 VDC) min.: Between power supply terminals and all output terminals. Between terminals of different output circuits. Between all terminals of CPU Unit and all terminals of Expansion I/O Unit. Reinforced insulation Between power supply or input terminals and output terminals. Between terminals of different output circuits. Between all terminals of CPU Unit and all terminals of Expansion I/O Unit. No separation Between power supply and input terminals of the same unit. Between power supply terminals of CPU Unit and computer connector, Battery Unit connector, or all Expansion Unit connectors (all interfaces are live parts). 2,300 VAC, 50/60 Hz for 1 min (leakage current 1 mA max.): Between power supply terminals and all output terminals. Between terminals of different output circuit. Between all terminals of CPU Unit and all terminals of Expansion I/O Unit. Conforms to IEC60068-2-6, 5 to 9 Hz with 3.5-mm single amplitude, 9 to 150 Hz acceleration 9.8 m/s2, 10 sweeps each in X, Y, and Z directions (1 octave/min) Conforms to IEC60068-2-27, 147 m/s2, 3 times each in X, Y, and Z directions. CPU Unit with 10 I/O points: Approx. 300 g max. CPU Unit with 20 I/O points: Approx. 350 g max. Expansion I/O Unit: Approx. 120 g max. Specification

LCD display (See note 2.) User program backup Power interruption hold
Operation buttons (See note 2.) 8 (4 cursor buttons and 4 operation buttons)
Calendar and clock function (See note 2.) Timer accuracy
Maximum counting speed Insulation resistance

Insulation

Dielectric strength
Vibration resistance Shock resistance Weight
Note: 1. Up to 34 points for CPU Units with 10 I/O points. With Communications-type CPU Units, however, the CPU Unit has 6 inputs and 3 outputs, for a maximum of 33 I/O points. 2. Not provided for LED-type CPU Unit without display (i.e., ZEN-@C2@@-@-V2 models).
Communications Specifications (Communications-type CPU Units)
Item Communications Synchronization method Baud rate Transmission code Data bit length Stop bit length Error detection Flow control Interface Retry function Node number RS-485 (two-wire, half duplex) Start-stop synchronization 4800, 9600, or 19200 bps ASCII 7 or 8 bits 1 or 2 bits Vertical parity (none, even, odd), Block check character (BCC) None RS-485 None 0 to 99 (default: 1), XX (broadcasting) ZEN-10C4@R-@-V2

Approved Standards

Item Safety standards Specification cULus: UL508/CSA C22.2 No.142 Class I Div2 Conforms to EN/IEC 61131-2 clause 11, excluding 11.7.2.2 (Overvoltage category 2 and Pollution degree II conforms to IEC 60664-1) Radiation Field Emission Noise Terminal Voltage Emission Electrostatic Discharge Immunity Electromagnetic Field Immunity Electrical Fast Transient/Burst Immunity CISPR11 CISPR11 IEC61000-4-2 IEC61000-4-3 IEC61000-4-4 Class A, Group 1 Class A, Group 1

EMC (See note.)

In air: 8 kV, In contact: 6 kV 10 V/m Power line AC I/O: 2 kV DC I/O: 1 kV Surge Immunity IEC61000-4-5 Normal Noise AC power supply, AC I/O: 1 kV DC power supply, DC I/O: 0.5 kV Common Noise AC power supply, AC I/O: 2 kV DC power supply: 1 kV DC I/O: 0.5 kV Immunity to Conducted Disturbances Induced by Radio-frequency Fields IEC61000-4-6 3V Momentary Power Interruption Immunity IEC61131-2 CPU Units with AC Power Supplies: 10 ms max. CPU Units with DC Power Supplies: 2 ms max. (level: PS1) Note: EMC conforms to EN 61131-2 clause 8 except in the following cases. When Expansion I/O Units with DC inputs are connected to a CPU Unit with an AC power supply, the burst immunity between power supplies will be 1 kv. When the signal wire for transistor outputs exceeds 10 m, the surge immunity of DC output signal lines will not conform.

Input Specifications

AC Inputs (Not Isolated)
Item Input voltage Input impedance Input current ON voltage OFF voltage ON response time OFF response time 680 k 0.15 mA/100 VAC, 0.35 mA/240 VAC 80 VAC min. 25 VAC max. 50 ms or 70 ms at 100 VAC (See note.) 100 ms or 120 ms at 240 VAC (See note.)

100 to 240 VAC N L

Specifications 100 to 240 VAC +10%, 15%, 50/60 Hz

Circuit drawing

IN 330 k 300 k IN 51 k Internal circuit
Note: Can be selected using the filter settings.
DC Inputs: I0 to I3 for Units with 10 I/O points, I0 to I9 for Units with 20 I/O Points (Not Isolated)
Item Input voltage Input impedance Input current ON voltage OFF voltage ON response time OFF response time Note: Can be selected using the input filter settings, except when I0 is being used for an 8-digit counter with a high-speed input. 5.3 k 4.5 mA (typ.)/24 VDC 8 VDC min. 5 VDC max. 15 ms or 50 ms (See note.)
12 to 24 VDC IN 5.1 k 1.8 k IN
Specifications 12 to 24 VDC +20%, 10%

Internal circuit COM

DC Inputs: I4 and I5 for Units with 10 I/O points, Ia and Ib for Units with 20 I/O Points (Not Isolated)
Item DC Inputs Input voltage Input impedance PNP: NPN: Input current ON voltage OFF voltage ON response time OFF response time Analog Inputs Input range External input impedance Resolution Accuracy 0 to 10 V 100 k min. 0.1 V (1/100 FS) 1.5% FS (at ambient operating temperature within rated range) PNP: NPN: 8 VDC min. 3 VDC max. 15 ms or 50 ms (See note.) Specifications 12 to 24 VDC +20%, 10% 5.5 k/14 VDC min. 100 k/14 VDC max. 5.2 k
Internal circuit Internal circuit
4.3 mA (typ.)/24 VDC 4.6 mA (typ.)/24 VDC
Analog voltage output device +

150 k IN 47 k 220 k

COM 12 to 24 VDC
AD conversion data 0 to 10.5 V (in increments of 0.1 V) Note: Can be selected using the input filter settings.
Item Input voltage Input impedance Input current ON voltage OFF voltage ON response time Off response time 680 k 0.15 mA/100 VAC, 0.35 mA/240 VAC 80 VAC min. 25 VAC max. 50 ms or 70 ms at 100 VAC (See note.) 100 ms or 120 ms at 240 VAC (See note.)

100 to 240 VAC

N L IN IN

330 k 300 k 51 k

Note: Can be selected using the input filter settings.
DC Inputs (ZEN-8E1DR: Not Isolated, ZEN-8E1DT: Photocoupler Isolated)
Item Input voltage Input impedance Input current ON voltage OFF voltage ON response time OFF response time Note: 1. Can be selected using the input filter settings. 2. The ZEN-8E1DT has no +/- terminals. There is no need to supply power. 6.5 k 3.7 mA (typ.)/24 VDC 8 VDC min. 5 VDC max. 15 ms or 50 ms (See note 1.)

COM I 0

Note: When connecting an analog input device, always connect the negative side to the COM terminal.
For Connections to Positive (+) Common (NPN Connection)

Input device +

COM I0

I1 I2 I3 I4 I5

Note: When connected to the positive (+) common, I4 and I5 cannot be used as analog inputs.
CPU Units with 20 I/O Points
For Connections to a Negative Common (PNP Connection)
COM I0 I1 I2 I3 I4 I5 NC I6 I7 I8 I9 Ia Ib
For Connecting Analog Input Devices to Input Terminals Ia and Ib

I6 I 7

CPU Units with 20 I/O points
Note: When connected to the positive (+) common, Ia and Ib cannot be used as analog inputs.
Note: 1. Supply power to both the CPU Unit and Expansion I/O Units from the same power supply and turn them ON and OFF at the same time. 2. ZEN-8E1AR Expansion I/O Units with AC inputs cannot be connected to CPU Units with DC power supply. 3. The input circuit commons for ZEN-8E1DR Expansion I/O Units with relay outputs are each internally connected to one side of the power supply circuit (COM terminal). 4. ZEN-8E1DT Expansion I/O Units with transistor outputs do not need to be connected to a power supply.
For Connections to Negative () Common

COM I0 I1 I2 I3 I4 I5

NC COM IN0 IN1 IN2 IN3

COM IN0 IN1 IN2 IN3

ZEN-8E1DR Expansion I/O Unit (DC input, relay output)
ZEN-8E1DT Expansion I/O Unit (DC input, transistor output)
For Connections to Positive (+) Common

Output Connections

All four relay output circuits in both CPU Units with 10 I/O points and Expansion I/O Units have independent contacts. CPU Units with 20 I/O points have 4 independent contacts (Q0 to Q3) and the remaining four (Q4 to Q7) have 2 points/common. There are no restrictions for polarity.
Standard LCD-type CPU Units, LED-type CPU Units, and Economy-type CPU Units
CPU Unit with 10 I/O Points CPU Unit with 20 I/O Points
Communications-type CPU Units
Communications-type CPU Unit

Expansion I/O Unit

B (+) A ()

OUT 2 OUT OUT 0 1

Load Load

RS-485

Load Load Load Q0 to Q3 Load
For CPU Units with 10 I/O points and Expansion I/O Units, all 4 outputs in the transistor output circuits have independent circuits. The terminals of output have polarity given on the terminal block, but no problem will result from reversing the connection positions of the power supply and load. For CPU Units with 20 I/O points, outputs Q0 to Q3 in the transistor output circuits have independent circuits and outputs Q4 to Q7 have 2 points per common. The terminals of output Q0 to Q3 have polarity given on the terminal block, but no problem will result from reversing the connection positions of the power supply and load. Note: Do not exceed a cable length of 10 m when connecting transistor outputs.

Standard LCD-type CPU Units and LED-type CPU Units without Display
+ Q0 + Q1 + Q2 + Q3 + Q0 + Q1 + Q2 + Q3 + Q4 Q5 + Q6 Q7
Expansion I/O Unit + + OUT2 OUT3 + OUT0 Load Load OUT1 Load Load

OUT0 to OUT3 Load

Q0 to Q3

Nomenclature

Standard LCD-type, Economy-type, and Communications-type CPU Units (Except for ZEN-@C2@@-@-V2 Models)

Left side Front

Power supply Input terminals terminals

Right side

Display screen

Operation buttons

Display Screen
Output terminals (See note 1.) Battery Unit connector (Remove the seal to connect the Battery Unit.) ZEN Support Software connector (also used for Memory Cassette.)
Expansion Unit connector cover (See note 2.) Do not remove this cover until connecting an Expansion Unit.

RUN ERR

Icon Meanings
Icon RUN Meaning Display while in RUN mode. Indicates an error. Displayed when there is a higher-level menu or ladder program line than the one currently displayed. Displayed when there is a lower-level menu or ladder program line than the one currently displayed. Displayed when a password had been set.

Left side

Power supply terminals

Input terminals

20C1AR-A-V2
Output terminals Battery Unit connector (Remove the seal to connect the Battery Unit.) ZEN Support Software connector (also used for Memory Cassette.)
Note: 1. With Communications-type CPU Units, the Q3 terminal is used as the RS-485 terminal. For details, refer to Output Connections on page 15. 2. Economy-type CPU Units are not provided with an Expansion Unit connector. Do not remove the cover.

Operation Buttons

DEL Button ALT Button
Operation Button Names and Operations
Button Menus Function Writing ladder program Setting parameters Button input bit (See page 24.) B6 ON

Cursor Buttons

Deletes inputs, outputs, connection --lines, and blank lines. Switches between normally open --and normally closed conditions. Changes to connection line write mode. Inserts a line.

ESC Button OK Button

Moves the cursor Moves the cursor up and down. up and down. Selects bit types and functions.
Moves the cursor up B5 ON and down. Changes numerals and parameters. B2 ON

Moves the cursor right and left.
Moves the cursor right B3 ON and left. B4 ON
Returns to the Cancels the setting and returns to previous screen. the previous operation. Confirms the setting. Selects the menu item at the cursor position.
Cancels the setting and returns to the previous operation. Confirms the setting.
LED-type CPU Units without Display (ZEN-@C2@@-@-V2)
Power supply terminals Input terminals

LED indicators

LED Indicators
Battery Unit connector (Remove the seal to connect the Battery Unit.) Output terminals ZEN Support Software connector (also used for Memory Cassette.) Expansion Unit connector cover Do not remove this cover until connecting an Expansion Unit.

Name POWER RUN

LED Green Lit Not lit Green Lit Not lit
Status Power is ON. Power is OFF. Operating (RUN) Stopped (STOP) Error occurred. Normal

I8 I9 Ia Ib

Lit Not lit

20C2AR-A-V2

Output terminals Battery Unit connector (Remove the seal to connect the Battery Unit.) ZEN Support Software connector (also used for Memory Cassette.) LED indicators Expansion Unit connector cover Do not remove this cover until connecting an Expansion I/O Unit.
Expansion I/O Units (ZEN-8E1@@)

Output terminals

Expansion I/O Unit connector
Expansion I/O Unit connector cover Do not remove this cover until connecting an Expansion I/O Unit.
Precaution when Using Expansion I/O Units: Up to three Expansion I/O Units can be connected. When removing the Expansion Unit connector cover from the side of the CPU Unit, use a Phillips screwdriver to remove the cover screw, and then insert a flat-blade screw driver in the cover gap to remove the cover, as shown at the right.

Phillips screwdriver

Flat-blade screwdriver

Operation

Name Symbol Bit addresses No. of points Operation Details (See note 1.) --Input bits Expansion input bits Output bits Expansion output bits Work bits Holding bits Timers I X Q Y M H T I0 to Ib 12 (See note 2.) X0 to Xb 12 Reflect the ON/OFF status of the input devices connected to the input terminals on the CPU Unit. Reflect the ON/OFF status of the input devices connected to the input terminals on the Expansion I/O Units. The ON/OFF status of these output bits is used to control the output devices connected to the output terminals on the CPU Unit. The ON/OFF status of these output bits is used to control the output devices connected to the output terminals on the Expansion I/O Units. Work bits can be used only within the ZEN program. I/Os for external devices cannot be made (i.e., all I/O is internal). Used the same as the work bits. However, if the power to the ZEN is turned OFF, these bits also maintain the previous ON/OFF status. X: ON-delay timer : OFF-delay timer O: One-shot pulse timer F: Flashing pulse timer W: Twin timer Holding timers Counters 8-digit counter # C F #0 to #7 C0 to Cf FHold the present value being counted even if the trigger input or power supply is turned OFF and continue timing when the trigger input or power is restored. Reversible 4-digit counters that can be incremented and decremented. Reversible 8-digit counters that can be incremented and decremented. CPU Units with DC power supply support a high-speed counter up to 150 Hz. For details, refer to 8-digit Counter Operation on page 21. Turn ON and OFF during specified times on specified days. Turn ON and OFF between specified dates. Display user-specified messages, times, timer/counter present values, or analog-converted values. Used as program input conditions to output analog comparator comparison results. These bits can be used only for CPU Units with DC power supply. Compare the present values of timers (T), holding timers (#), and counters (C). Comparison can be made between the same two counters or timers, or with constants. Used to compare the present values of 8-digit counters (F) and output the comparison results. Used as program input conditions and turn ON when operation buttons are pressed in RUN Mode. Functions are selected from the screen when parameter settings are made. Time units can be selected from the following: 0.01-s unit: 0.01 to 99.99 s min/s unit: 00 min 01 s to 99 min 59 s h/s unit: 00 h 01 min to 99 h 59 min

Note: Both RS-485 communications and the ZEN monitoring function cannot be used at the same time with Communications-type CPU Units.
The Support Software can also be used to save files and edit comments.
Refer to the ZEN Support Software Operation Manual (Cat. No. Z184-E1-03) for details.

Dimensions

Note: All units are in millimeters unless otherwise indicated.

CPU Units

CPU Units with 10 I/O Points ZEN-10C@@@-@-V2

Unit Mounting Holes

4.5 5.5 Note: Use M4 screws for mounting.

Mounting Hole Dimensions

Two, M4

4.7 (Sliding: 13 max.)

CPU Units with 20 I/O Points ZEN-20C@@@-@-V2

80 122.5 112.5

I6 I7 I8 I9 Ia Ib

60 (112.5) *

* The dimensions in parentheses refer to models with 20 I/O points. 45
Dimensions with Battery Unit

87.17.17.5

140 122.5

ZEN-BAT01

Expansion I/O Units
DIN Track Hook (Using Slide) Mounting Hole Dimensions
7.6 Two, 3.5 dia. 17.5 Two, M3

Power Supply Unit

ZEN-PA03024
60 4.7 (Sliding: 13 max.)
Accessories (Order Separately)

Battery Unit

ZEN-ME01

ZEN-CIF01

Cable length: 2m
Track Mounting Accessories (Order Separately)

Mounting Track

PFP-100N PFP-50N PFP-100N2
7.30.15 4.5 350.3 270.15 4.5 350.24

25 1,000 (500) *

15 (5) *

25 1,000

* The numbers in parentheses () are dimensions for the PFP-50N.

End Plate

Mpan-head screw

10 6.2 1.8

Spacer

34.8 44.3

1 35.5 35.3 1.8

11.1.3 4.8

M4 spring washer
Precautions when Selecting ZEN Programmable Relays
Changes in Comparison with Previous Models
The power supply and transistor output voltage ranges for CPU Units and Expansion I/O Units with DC power supply has been expanded to 10.8 to 28.8 VDC. The width of Expansion I/O Units has been reduced by half and only 8-point models are available. The connection method between the CPU Unit and Expansion I/O Units has changed. Twin timer operation has been added to timers. Multiple-day operation and pulse-output operation has been added to weekly timers. An 8-digit counter and 8-digit comparators have been added. The accuracy of analog inputs has been increased to 1.5% FS. The timing accuracy of weekly timers and calendar timers has been increased to 15 s or less per month (at 25C). Australia and New Zealand Daylight Saving Time (DST) settings have been added. CPU Units with RS-485 communications and economic CPU Units have been added. The heat slits in the cases of CPU Units and Expansion I/O Units have been removed to prevent foreign matter from entering.

Model numbers have been changed to reflect the improved functionality.

Previous Model Numbers

ZEN-@C@@@-@ ZEN-@C@@@-@-V1 ZEN-@E@@ (Pre-V1 CPU Units) (V1 CPU Units) (4E/8E-type Expansion I/O Units)

New Model Numbers

ZEN-@C@@@-@-V2 ZEN-8E1@@ (V2 CPU Units) (8E1-type Expansion I/O Unit)
Memory Cassettes, Connecting Cables, and Battery Units have not been changed and can be used as they are with the new models.
Precautions when Switching from Previous Units
Previous models of Expansion I/O Units cannot be connected to V2 CPU Units. ZEN-8E1@R Expansion I/O Units with relay outputs need to be connected to a power supply. A ZEN-@C@D@-D-V2 CPU Unit with DC power supply cannot be connected to an Expansion I/O Unit with AC inputs. When connecting Expansion I/O Units with DC inputs to a CPU Unit with an AC power supply, the burst noise immunity will be 1 kV (IEC 610004-4). There is no change to the 8 A per contact for relay output, but the total output for all contacts must be as follows: Units with 10 I/O Points: 20 A max. (15 A max. for Communications-type CPU Units) Units with 20 I/O Points: 40 A max. Expansion I/O Units: 20 A max. Always use the ZEN-SOFT01-V4 Support Software for V2 CPU Units. Input wiring for CPU Units with DC power supplies differs from that for Pre-V1 CPU Units. Refer to the following diagrams. V2 and V1 CPU Units COM wiring depends on whether a negative common or positive common is being used.
Negative () COM Wiring 24 VDC COM wiring required. Analog inputs possible. Input devices +
Pre-V1 CPU Units The input circuit common terminal is connected internally to the negative () side of the power supply circuit.

24 VDC

Analog inputs possible. Input devices

Positive (+) COM Wiring

COM wiring required.

Input devices

+ CPU Unit with 10 I/O Points
CPU Unit with 10 I/O Points
Note: I4 and I5 (Ia and Ib for CPU Units with 20 I/O points) cannot be used as analog input terminals.

Changes

Ratings and Specifications
Item Rated power Models with DC supply voltage power supply Power consumption Models with AC power supply Models with DC power supply Inrush current Models with AC power supply Models with DC power supply DC inputs I0 to I3 (See note 1.) Input impedance ON voltage Input common DC inputs I4 to I5 (See note 2.) Input impedance ON voltage OFF voltage Analog inputs Input impedance I4 to I5 Accuracy (See note 2.) Control outputs Relay outputs Models with 10 I/O points: 4.5 A max. Models with 20 I/O points: 4.5 A max. Models with 10 I/O points: 30 A max. Models with 20 I/O points: 30 A max. 5.3 k 8 VDC min. Independent common terminal 5.2 to 5.5 k 8 VDC min. 3 VDC max. 100 k min. 1.5% FS (at ambient operating temperature within rated range) 8 A per output Total for all outputs must be as follows: Units with 10 I/O Points: 20 A max. (15 A max. for Communications-type CPU Units) Units with 20 I/O Points: 40 A max. 15 s or less per month (at 25C) 5 k 16 VDC min. 5 VDC max. 150 k min. 10% FS (at ambient operating temperature within rated range) 8 A per output 10.8 to 28.8 VDC See Ratings on page 7. V2 Units V1 Units 20.4 to 26.4 VDC 30 VA max. (with 3 Expansion I/O Units connected) 6.5 W max. (with 3 Expansion I/O Units connected) 40 A max. 20 A max. 5 k 16 VDC min. Internally connected to power supply terminal 4.8 k Pre-V1 Units

Transistor outputs 28.8 V max. Timing accuracy of weekly and calendar timers Mounting direction Terminal block tightening torque Connectable Expansion I/O Units Case structure
26.4 V max. 2 min per month
Standard (vertical) installation and horizontal installation Standard (vertical) installation 0.565 to 0.6 Nm (5 to 5.3 in-lb) ZEN-8E1@ (See note 3.) No heat slits 0.5 to 0.6 Nm ZEN-4E@ and ZEN-8E@ Heat slits
Note: 1. Units with 20 I/O Points: I0 to I9 2. Units with 20 I/O Points: Ia to Ib 3. Refer to page 31 for details on compatible combinations of CPU Units and Expansion I/O Units.
Item Model AC inputs Input impedance Isolation Input common DC inputs Input voltage Input impedance Isolation ON voltage Input common 680 k No isolation Internally connected to power supply terminal 10.8 to 28.8 VDC 6.5 k ZEN-8E1DR: No isolation ZEN-8E1DT: Photocoupler 8 VDC min. 8E1 type Unit with 8 I/O Points 83 k Photocoupler Independent common terminal 20.4 to 26.4 VDC 4.7 k Photocoupler 16 VDC min. 4E/8E type Units with 4 input, 4 output, or 8 I/O points
ZEN-8E1DR: Internally connected to power supply Independent common terminal terminal ZEN-8E1DT: Independent common terminal 8 A per output Total for all outputs must be as follows: Units with 10 I/O Points: 20 A max. Units with 20 I/O Points: 40 A max. 28.8 V max. M3 (mounting holes on DIN Track hooks) V2 CPU Units (See note.) 56 mm No heat slits 8 A per output
Control output Relay outputs
Transistor outputs Mounting screws Connectable CPU Unit Dimensions (H W D) Case structure
26.4 V max. M4 (mounting holes on Unit) V1 or Pre-V1 CPU Units 56 mm Heat slits
Note: Refer to page 31 for details on compatible combinations of CPU Units and Expansion I/O Units.

Other Functions

Item Bits Timer operation Weekly timer operation Addition of bits Daylight Saving Time (DST) Setting Items set for password V2 Units ON-delay, OFF-delay, one-shot pulse, flushing pulse, twin timer operation Timer operation, multiple-day operation, pulseoutput operation 8-digit counter (1 counter, up to 150 Hz) 8-digit comparators (4 comparators) Manual, EU, US. Australia, New Zealand Ladder program editing Program all clear Ladder monitoring Password change/clear Backlight shut-off time Input filter settings Node number setting (See note.) Not possible Node number setting window deleted (except for Units with communications). Modem initialization window deleted (except for Units with communications). Models added with communications. ZEN-10C4@R-@-V2 Possible Node number setting window displayed. Modem initialization window displayed. V1 Units Pre-V1 Units ON-delay, OFF-delay, one-shot pulse, flushing pulse Timer operation --Manual, EU, US Ladder program editing Ladder monitoring Password change/clear Backlight shut-off time Input filter settings Node number setting

LCD contrast adjustment Menus Node number setting window Modem initialization window RS-485 communications Economy-type CPU Units
Economy-type models added. --ZEN-@C3@R-@-V2 Expansion I/O Units cannot be connected. Other functions are the same as the standard LCD models.
Note: Not displayed for V2 CPU Units except for Units with Communications.
Name V2 Units 10 I/O points Input bits Output bits Timers Holding timers Counters Weekly timers Calendar timers Display bits Work bits Holding bits Expansion input bits Expansion output bits Analog comparator bits Timer/counter comparator bits 8-digit counter I T # C * D H X Y A P F 6 points 16 points 8 points 16 points 16 points 16 points 16 points 12 points 12 points 4 points 16 points 1 point ----20 I/O points 12 points 6 points 4 points CPU Unit V1 Units 10 I/O points 20 I/O points 12 points 8 points Pre-V1 Units 10 I/O points 6 points 4 points 8 points 4 points 8 points 8 points 8 points 8 points
Q 4 points (See note.) 8 points

@ 16 points

M 16 points
8-digit counter comparator bits G 4 points
Note: Output bit Q3 of Communications-type CPU Units cannot be output externally. It can be used as a work bit.
Compatible Combinations of CPU Units and Expansion I/O Units
The Expansion I/O Units that can be connected to V2 CPU Units are different from those that can be connected to V1 CPU Units and previous CPU Units. Expansion I/O Units with AC Inputs cannot be connected to V2 CPU Units with DC Power Supplies. Expansion I/O Units cannot be connected to Economy-type CPU Units. CPU Units Version V2 CPU Unit type Standard LCD type LED type Communications type Standard LCD type LED type Economy type V1 and Pre-V1 Standard LCD type LED type Power supply AC Model ZEN-@C1AR-A-V2 ZEN-@C2AR-A-V2 ZEN-10C4AR-A-V2 ZEN-@C1D@-D-V2 ZEN-@C2D@-D-V2 ZEN-@C3AR-A-V2 ZEN-@C3DR-D-V2 ZEN-@C1AR-A-V1 ZEN-@C1AR-A ZEN-@C2AR-A-V1 ZEN-@C2AR-A ZEN-@C1D@-D-V1 ZEN-@C1D@-D ZEN-@C2D@-D-V1 ZEN-@C2D@-D ZEN-4EA ZEN-4ED ZEN-4ER ZEN-8EAR ZEN-8EDR ZEN-8EDT Supported Expansion I/O Units ZEN-8E1AR ZEN-8E1DR ZEN-8E1DT ZEN-8E1DR ZEN-8E1DT Not supported.

Difference between ZEN Programmable Relays and PLC Ladder Program Execution

ZEN Programmable Relays

IQIBus bar I4 T0 [ Q1 TT0 [ Q2
Executed sequentially from the bus bar.

OMRON SYSMAC PLCs

IQII4 T0 [ Q1 TT0 [ Q2 END I1 I2 [ Q0

I2 [ Q0

ZEN executes the entire ladder program (up to 96 lines) from the first to last line at one time. Each row is executed in order from left to right starting from the left bus bar.
PLCs execute ladder programs one rung (circuit) at a time, starting with the top rung and executing it in order from the left. When the END instruction is reached, the program is executed again from the first rung.
The ON/OFF status produced by an output contact will not be used as the input contact status in the same cycle, but it can be used in the next cycle.
IM[ Q0 [ M0 I0 M0 Qcycle 1 cycle
When the following instructions are executed, Q0 turns ON/OFF at the same time as the other bits.

IM[ Q0 [ M0 I0 M0 Q0

Safety Precautions
Refer to Safety Precautions for All Timers.

!WARNING

Serious human hazard may occasionally occur due to ignition or rupture of the lithium battery used in the Battery Unit. Do not short the battery terminals or charge, disassemble, deform under pressure, or incinerate the battery. Never use any battery that has been dropped on the floor or otherwise subjected to excessive shock.
Disconnect the output lines from the system before testing operation in any system in which incorrect operation can result in injury or equipment damage. Confirm safety before attempting any of the following operations. Changing the operating mode (RUN/STOP). Using the button switches. Changing bit status or parameter settings. Double-check all wiring before turning ON the power supply. Refer to Cycle Time Calculation Method on page 21 and confirm that the increase in the cycle time will not affect operation. If the cycle time is too long, it may become impossible to read input signals accurately. The increase in the cycle time will be particularly noticeable when set values are written in RUN mode for a CPU Unit with communications (ZEN-10C4@R-@-V2).

!CAUTION

Electric shock, fire, or malfunction may occur. Do not disassemble, modify, or repair the ZEN or touch any of the internal parts. Electric shock may occur. Never touch the I/O terminals, computer connector, or Battery Unit connector while power is being supplied. Electric shock may occur. Do not remove the Expansion Unit connector cover unless an Expansion I/O Unit will be permanently installed. Fire may occasionally occur. Tighten the terminal screws to a torque of 0.565 to 0.6 Nm (5 to 5.3 in-lb).

Installation and Wiring

Do not allow the ZEN to fall during installation. Be sure that the DIN Track mounting levers, Memory Cassettes, Battery Units, cable connectors, and other items with locking devices are properly locked into place. Improper locking may result in malfunction. For surface mounting, tighten mounting screws to the following torque. CPU Units: 1.03 Nm max. Expansion I/O Units: 0.46 Nm max. Use wires with cross-sectional areas of 0.2 to 2.5 mm2 (equivalent to AWG24 to AWG14) for wiring and strip them for 6.5 mm.

Precautions for Safe Use

Please observe the following precautions for safe use of this product.

Circuit Design

All interface connectors and battery connectors are live parts. They may not be directly connected to a Safety Extra Low Voltage (SELV) circuit or to accessible conductive parts. For programming units and personal computers use only the connecting cable ZEN-CIF01 (optional accessory) manufactured by OMRON. ZEN-CIF01 provides safe (reinforced) insulation between personal computers and ZEN. Provide emergency stop circuits, external interlock circuits, limit circuits, and other safety circuits in addition to any provided within the ZEN control circuits to ensure safety of the overall system in the event of ZEN failure or external factors. If the ZEN discovers an error during self-diagnosis, operation will be stopped and all outputs will be turned OFF. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the overall system. Outputs from the ZEN may remain ON or OFF due to faults in internal circuits such as output relay fusing or burning, or output transistor destruction. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the overall system. Fail-safe measures must be taken by the user to ensure overall system safety in the event of broken signal lines or momentary power interruptions. The durability of the output relays is largely affected by the switching conditions. Confirm the operation of the system under actual operating conditions and set the switching frequency to ensure that adequate performance will be provided. Insulation faults and burning in the ZEN may result if relays are used after their performance has deteriorated.

Handling

The environment of use for the ZEN is "Pollution degree 2" and "Overvoltage category II" specified in IEC60664-1. Always use the ZEN within the rated ambient operating temperature and humidity. The rated ambient operating temperature is 0 to 55C (25 to 55C for LED-type CPU Units). If the ZEN is used near sources of heat, such as a power supply, the internal temperature of the ZEN may increase, lowering the durability of the ZEN. Discharge static electricity from your body, e.g., by touching a grounded metal plate, before touching any Unit. The exterior of the Units will be damaged if it comes into contact with organic solvents (e.g., benzene or paint thinner), strong alkalies, or strong acids. Never allow such substances to come into contact with the Units. Do not apply voltages exceeding the rated voltages. Internal elements may be destroyed. Short failures or open failures may result from the destruction of output elements. Do not use loads that exceed the rated output current.

Switching Mode Power Supply

ZEN-PA03024

CSM_ZEN-PA03024_DS_E_3_1
New Compact Power Supply (30 W) for ZEN Programmable Relays
Slim size with a depth of 56 mm (W H D: 56 mm). EMI: Conforms to EN61000-6-3 (Class B). Allows parallel operation. Safety standards: UL508/UL60950-1/UL1604, CSA C22.2 No. 14/No.60950-1/ No.213 (Evaluated by UL), EN60950-1 (VDE 0805 Teil 1), EN50178 (VDE0160) Output voltage: 24 VDC; Output current: 1.3 A; Capacity: 30 W Uses lead-free soldering.
Refer to Safety Precautions on page 6

Model Number Structure

Model Number Legend

ZEN-PA 030 24

1. Unit PA: Power supply unit 2. Power Ratings 030: 30 W 3. Output voltage 24: 24 V

Ordering Information

List of Models
Power ratings 30 W Input voltage 100 to 240 VAC Output voltage 24 VDC 1.3 A Output current Model number ZEN-PA03024
Accessories (Order Separately)
Name Mounting Track 50 cm (l) 7.3 mm (t) 1 m (l) 7.3 mm (t) 1 m (l) 16 mm (t) End Plate Spacer PFP-50N PFP-100N PFP-100N2 PFP-M PFP-S Models

Specifications

Ratings/Characteristics
Efficiency (typical) Input Voltage Frequency Current Leakage current 100 VAC input 200 VAC input 100 VAC input 200 VAC input Inrush current (See note 2.) 100 VAC input 200 VAC input Output Voltage adjustment range (See note 3.) Ripple Input variation influence Temperature variation influence Start up time (See note 2.) Hold time (See note 2.) Additional functions Overload protection (See note 2.) Parallel operation Series operation Others Ambient temperature 80% min. 100 to 240 VAC (85 to 264 VAC), 95 to 350 VDC (See note 1.) 50/60 Hz (47 to 450 Hz) 0.8 A max. 0.45 A max. 0.4 mA max. 0.75 mA max. 25 A max. 50 A max. 10 to 15% (with V.ADJ) of rated output voltage 2% (p-p) max. (25 to 10C: 4% max.) 0.5% max. 0.05%/C max. 1,000 ms max. (100 VAC or 200 VAC, at rated output voltage) 15 ms min., 20 ms (typical) (100 VAC or 200 VAC, at rated output voltage) 105% to 135% of rated load current, inverted L drop, intermittent, automatic reset Yes (2 units max. For details, refer to the derating curve in Engineering Data on page 4. For DC input, parallel operation is possible only for 110 to 350 VDC.) No Operating: Refer to the derating curve in Engineering Data on page 4. (with no icing or condensation) Storage: 25 to 75C (with no icing or condensation) Operating: 10 to 90% Storage: 10 to 90% DIN track mounting, surface mounting 2.0 kVAC for 1 min. (between all inputs and exposed non-current-carrying metal parts; detection current: 10 mA max.) 3.0 kVAC for 1 min. (between all inputs and all outputs; detection current: 20 mA max.) 1.0 kVAC for 1 min. (between all outputs and non-current-carrying metal parts; detection current: 10 mA max.) 100 M min. (between all outputs and all inputs/exposed non-current-carrying metal parts) at 500 VDC 10 to 55 Hz, 0.375-mm single amplitude for 2 h each in X, Y, and Z direction 300 m/s2, 3 times each in X, Y, Z directions Yes (color: green) Conducted emissions Radiated emissions Approved standards Conforms to EN61000-6-3 (Class B) Conforms to EN61000-6-3 (Class B) UL: UL508 (listing, Class 2: Per UL1310), UL60950-1, UL1604 (Class I/Division 2) cUL: CSA C22.2 No. 14 (listing, Class2: Per CSA C22.2 No. 223), CSA C22.2 No. 213 (Class I/Division 2) cUR: CSA C22.2 No.60950-1 EN/VDE: EN60950-1 (=VDE 0805 Teil 1), EN50178 (=VDE 0160) 240 g max.

Load variation influence (rated input voltage) 1.5% max.
Ambient humidity Mounting method Dielectric strength
Insulation resistance Vibration resistance Shock resistance Output indicator EMI

Weight

Note: 1. This product has been approved for safety standards only when an AC input is used. It has not been approved when a DC input is used. 2. Refer to the Engineering Data section on page 4 for details. 3. If the V. ADJ adjuster is turned, the voltage will increase by more than 15% of the voltage adjustment range. Check the output voltage of the power supply when converting the output voltage, and make sure that the load will not be damaged.

Connections

Block Diagram

Fuse 2A L1 INPUT L2/N

Rectifier/ Inrush current protection circuit smoothing circuit Rectifier/ smoothing circuit
+V Noise filter DC OUTPUT V

Drive control circuit

Overcurrent circuit
Current detection circuit
Overvoltage detection circuit

Photocoupler

Note: The Power Supply is provided with reinforced insulation between the input and output terminals.

Installation

No. 1 Name AC input terminal (L1) Function Connect the input line to this terminal. A fuse is included in the circuit.
AC input terminal (L2/N) Connect the input line to this terminal. Negative pole for DC input. DC output terminals (+V) Connect the load lines to these terminals. DC output terminals (V) Connect the load lines to these terminals. Output indicator (DC ON: Green) Lights while a direct current (DC) output is ON.
Output voltage adjuster Use to adjust the voltage. (V.ADJ)

Engineering Data

Derating Curve
85 to 264 VAC or 110 to 350 VDC input
Load (%) 25 (2) For parallel operation (See note 1.) (1)

Overload Protection

The Power Supply is provided with an overload protection function that protects the load and the power supply from possible damage by overcurrent. When the output current rises above 105% min. of the rated current, the protection function is triggered, decreasing the output voltage. When the output current falls within the rated range, the overload protection function is automatically cleared.

(Reference value)

Output voltage (V)
55 Ambient Temperature (C)

95 to 110 VDC input

Load (%) 120

Intermittent operation

(2) (1)

100 Output current (%)

The values shown in the above diagrams are for reference only. Note: 1. Internal parts may occasionally deteriorate or be damaged if a short-circuited or overcurrent state continues during operation. 2. Internal parts may possibly deteriorate or be damaged if the Power Supply is used for applications with frequent inrush current or overloading at the load end. Do not use the Power Supply for such applications.

Ambient Temperature (C)

Note: 1. The maximum ambient temperature for parallel operation is 45C. 2. Parallel operation is not possible for an input of 95 to 110 VDC. 3. Although operation is possible in the (2) portion of the derating curve, performance may be adversely affected, i.e., ripple noise may increase. 4. Internal parts may occasionally deteriorate or be damaged. Do not use the Power Supply in areas outside the derating curve (i.e., the area shown by shading (1) in the above graph).
Inrush Current, Start Up Time, Hold Time
Input ON AC input voltage Input OFF
Inrush current on input application AC input current

Installation

Correct Incorrect
Output voltage Start up time (1,000 ms max.)

Hold time (15 ms min.)

Standard mounting

Face-up mounting

Note: 1. Improper mounting will interfere with heat dissipation and may occasionally result in deterioration or damage of internal parts. Use the standard mounting. 2. If there is a derating problem, use forced air-cooling. The ambient temperature is specified for a point 50 mm below the Power Supply.

Dimensions

Note: All units are in millimeters unless otherwise indicated. ZEN-PA03024

Surface Mounting Holes

Two, M4
4.7 (Sliding: 13 max.) 56
Mounting Track PFP-100N, PFP-50N PFP-100N2
16 7.30.15 4.5 350.25 1,000 (500)* 25 270.1,15 4.5 350.29.2 1.5
* The value shown in parentheses is for the PFP-50N.

End Plate PFP-M

10 6.2

Spacer PFP-S

1.8 35.5 35.3 44.3 34.8

11.M4 x 8 pan head screw

1.3 4.8 16.5

Safety Precautions

Refer to Safety Precautions for All Timers.

!CAUTION

Minor electric shock may occasionally occur. Do not disassemble the product or touch internal parts. Minor fires may occasionally occur. Do not attempt to repair or modify the product. Minor burns may occasionally occur. Do not touch the product while power is being supplied or immediately after power is turned OFF. Minor fires may occasionally occur. Tighten terminal screws to a torque of 0.5 to 0.6 Nm so that they do not become loose. Minor electric shock may occasionally occur during operation. Do not touch the input and output terminals while power is being supplied. The product may occasionally be damaged. Do not allow any clippings or cuttings to enter the product during installation work. Working voltage can be 350 V max. inside. This voltage can be also available 10 s after the switch off.

Wiring

Minor fire may possibly occur. Ensure that input and output terminals are wired correctly. Use the following material for the wires to be connected to the Power Supply to prevent smoking or ignition caused by abnormal loads. Use solid wires. Always attach pin crimp terminals when using stranded wire. The stripping distance should be 6.5 mm.

Recommended Wire Type

Solid wire Stranded wire Pin crimp terminals Cross section 0.5 to 2.5 mm2 (Equivalent to AWG20 to AWG14) Cross section 0.5 to 2.5 mm2 (Equivalent to AWG20 to AWG14) Dia.: 1.1 to 2.3 mm

Precautions for Safe Use

The following precautions must be observed to ensure safety.
Do not apply more than 100 N force to the terminal block when tightening the terminals. Be sure to remove the sheet covering the product before turning ON the Power Supply and confirm that nothing is interfering with heat dissipation.

Installation Environment

Do not use the Power Supply in locations subject to shocks or vibrations. In particular, install the Power Supply as far away as possible from contactors or other devices that are a vibration source. Install the Power Supply well away from any sources of strong, high-frequency noise.

Mounting

Mounting Direction (Refer to Installation in Engineering Data on page 4.) Standard Mounting Horizontal Mounting Other Mounting Valid Invalid Invalid
Operating and Storage Conditions
When installing the Power Supply, check for any signs that the product or packaging has been struck. If internal parts have been damaged, overvoltages may be output depending on the location of the damage. Internal parts may occasionally deteriorate or be damaged. Store the Power Supply at a temperature of 25 to 65C and a humidity of 10% to 90%. Internal parts may occasionally deteriorate or be damaged. Do not use the Power Supply in areas outside the derating curve (i.e., the area shown by shading (1) in the graph on page 4). For UL508 Listing, the surrounding air temperature should be 40C. Use the Power Supply at a humidity of 10% to 90%. Do not use the Power Supply in locations where condensation may occur due to high humidity or where temperature changes are severe. Do not use the Power Supply in locations subject to direct sunlight. Do not use the Power Supply in locations where liquids, foreign matter, or corrosive gases may enter the interior of products.

The internal parts may occasionally deteriorate or be broken due to adverse heat dissipation depending on the mounting status. Do not use the product in any way other than the standard mounting direction. Mounting Space Make sure that sufficient heat dissipation is provided when installing the Power Supply to increase its long-term reliability. Install the product in a location that allows a natural airflow to occur around the Power Supply. We recommend using End Plates (PFP-M) to secure the Power Supply and to ensure that a space of at least 10 mm is maintained between Power Supplies. If the installation space above and below the Power Supply is less than 50 mm, reduce the ambient temperature by 5C. A minimum space of 20 mm is required.
ZEN-PA03024 (See note 2.) (See note 1.)

Overload Protection

Internal parts may possibly deteriorate or be damaged if a shortcircuited or overcurrent state continues during operation. Internal parts may possibly deteriorate or be damaged if the Power Supply is used for applications with frequent inrush current or overloading at the load end. Do not use the Power Supply for such applications.

(See note 2.)

(See note 3.) (See note 1.)

Charging the Battery

This product is not intended to function as a battery charger. If a battery is to be connected as the load, mount an overcurrent limiting circuit and an overvoltage protection circuit.
Note: 1. Convection of air 2. 50 mm min. 3. 10 mm min.

Output Voltage Adjuster

The output voltage adjuster (V.ADJ) may possibly be damaged if it is turned with unnecessary force. Do not turn the adjuster with excessive force. After changing the setting of the adjuster, make sure that the output capacity and output current do not exceed the rated output capacity and rated output current. Output voltage is adjustable with the output voltage adjuster (V.ADJ) on the front surface of the product from 10% to +15% of the rated output voltage. Do not increase the output voltage by more than 10% when connected to a ZEN CPU Unit rated for 24 VDC. Use the following guidelines to select the diode. Type Dielectric strength (VRRM) Forward current (IF) Schottky Barrier diode Twice the rated output voltage or above Twice the rated output voltage or above

Parallel Operation

Two Power Supplies can be operated in parallel.

Correct

AC (L1) AC (L2/N) +V V

DIN Track Mounting

To mount the Power Supply on a DIN track, hook portion (A) of the Power Supply onto the track and press the Power Supply in direction (B).

AC (L1) AC (L2/N)

To dismount the Power Supply, pull down portion (C) with a flat-blade screwdriver and pull out the Power Supply.

Note: 1. For parallel operation, a maximum of two Power Supplies of the same model can be connected. 2. For a DC input, parallel operation is possible only for 110 to 350 VDC. 3. To ensure that the voltage drop between each Power Supply and the load is the same, use the same wire length and thickness to connect the load. 4. The load current will become imbalanced if the output voltages are different, possibly causing a serious reduction in the life of one of the Power Supplies. Adjust the output voltages of the Power Supplies to the same value.

30 mm min.

In Case there is No Output Voltage
The possible cause for no output voltage may be the presence of an overload or overvoltage condition, or may be due to the functioning of a latching protective device. The latching protection may operate if a large amount of surge voltage such as a lightening surge occurs while turning ON the Power Supply. In case there is no output voltage, please check the following points before contacting us:

Track stopper

Series Operation
The Power Supply is not designed for series operation.

Incorrect

Check the overload protected status: Check whether the load is in overload status or is short-circuited. Remove wires to load when checking. Attempt to clear the latching protection function: Turn the power supply OFF once, and leave it OFF for at least 1 minute. Then turn it on again to see if this clears the condition.
Insulation Resistance Test
When performing the test, be sure to short-circuit all the output terminals to protect them from damage.

Output voltage ()

Two Power Supplies can be used to create a output.

Dielectric Strength Test

When a high voltage is applied between the input terminals and the output terminals, electric energy builds up across the inductor L and capacitor C of the internal noise filter. This energy may generate a voltage surge when a high voltage is applied to the Power Supply by a switch or timer, and as a result, the internal parts of the Power Supply may possibly be damaged. To prevent voltage impulses when testing, decrease the applied voltage using the variable resistor on the dielectric strength testing equipment, or apply the voltage so that it crosses the zero point when it rises or falls. When performing the test, be sure to short-circuit all the output terminals to protect them from damage.
Note: When the load is an operational amplifier or other device allowing series operation, a startup failure may occur when the Power Supply is turned ON and internal circuits may be damaged. Connect a diode as shown in the figure to prevent this. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice.

Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments.
Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog. Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

Disclaimers

CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

PERFORMANCE DATA

Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRONs test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.

ERRORS AND OMISSIONS

The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.
2010.10 In the interest of product improvement, specifications are subject to change without notice.
Industrial Automation Company

http://www.ia.omron.com/

OMRON Corporation
(c)Copyright OMRON Corporation 2010 All Right Reserved.