Intended Use

Frequency inverters are intended for installation in electrical systems or machinery. Their installation in machinery and systems must conform to the following product standards of the Low Voltage Directive: EN 50178, 1997-10, Equipping of Power Systems with Electronic Devices EN 60204-1, 1997-12Machine Safety and Equipping with Electrical Devices Part 1: General Requirements (IEC 60204-1:1997)/ Please note: Includes Corrigendum of September 1998 EN 61010-1, A2, 1995Safety Requirements for Information Technology Equipment (IEC 950, 1991 + A1, 1992 + A2, 1993 + A3, 1995 + A4, 1996, modified) CE marking is carried out to EN 50178, using the line filters specified in this manual and following the appropriate installation instructions.
Transportation and storage
The instructions for transportation, storage and proper handling must be followed in accordance with the technical data.

Installation

Install and cool the inverters as specified in the documentation. The cooling air must flow in the specified direction. The inverter may therefore only be operated in the specified position (e.g. upright). Maintain the specified clearances. Protect the inverters against impermissible loads. Components must not be bent nor insulation clearances changed. To avoid damage being caused by static electricity, do not touch any electronic components or contacts.

Electrical Connection

Carry out any work on live equipment in compliance with the national safety and accident prevention regulations. Carry out electrical installation in compliance with the relevant regulations. In particular, follow the installation instructions ensuring electromagnetic compatibility (EMC), e.g. shielding, grounding, filter arrangement and laying of cables. This also applies to equipment with the CE mark. It is the responsibility of the manufacturer of the system or machine to ensure conformity with EMC limits. Your supplier or Omron Yaskawa Motion Control representative must be contacted when using leakage current circuit breaker in conjunction with frequency inverters. In certain systems it may be necessary to use additional monitoring and safety devices in compliance with the relevant safety and accident prevention regulations. The frequency inverter hardware must not be modified.
The Varispeed E7 frequency inverters are certified to CE, UL, and cUL

EMC Compatibility

Introduction
This manual was compiled to help system manufacturers using OMRON YASKAWA Motion Control (OYMC) frequency inverters design and install electrical switch gear. It also describes the measures necessary to comply with the EMC Directive. The manual's installation and wiring instructions must therefore be followed. Our products are tested by authorized bodies using the standards listed below. Product standard: EN 61800-3:1996 EN 61800-3; A11:2000

Measures to Ensure Conformity of OYMC Frequency inverters to the EMC Directive
OYMC frequency inverters do not necessarily have to be installed in a switch cabinet. It is not possible to give detailed instructions for all of the possible types of installation. This manual therefore has to be limited to general guidelines. All electrical equipment produces radio and line-borne interference at various frequencies. The cables pass this on to the environment like an aerial. Connecting an item of electrical equipment (e.g. drive) to a supply without a line filter can therefore allow HF or LF interference to get into the mains. The basic countermeasures are isolation of the wiring of control and power components, proper grounding and shielding of cables. A large contact area is necessary for low-impedance grounding of HF interference. The use of grounding straps instead of cables is therefore definitely advisable. Moreover, cable shields must be connected with purpose-made ground clips.

Laying Cables

Measures Against Line-Borne Interference: Line filter and frequency inverter must be mounted on the same metal plate. Mount the two components as close to each other as possible, with cables kept as short as possible. Use a power cable with well-grounded shield. For motor cables up to 50 meters in length use shielded cables. Arrange all grounds so as to maximize the area of the end of the lead in contact with the ground terminal (e.g. metal plate). Shielded Cable:
Use a cable with braided shield. Ground the maximum possible area of the shield. It is advisable to ground the shield by connect-
ing the cable to the ground plate with metal clips (see following figure).

Ground Clip

Ground Plate
Fig 1 Earthing the cable shield with metal clips
The grounding surfaces must be highly conductive bare metal. Remove any coats of varnish and paint. Ground the cable shields at both ends. Ground the motor of the machine.

Mechanical Installation

Unpacking the Inverter
Check the following items after unpacking the inverter.
Item Has the correct Inverter model been delivered? Is the Inverter damaged in any way? Are any screws or other components loose? Method Check the model number on the nameplate on the side of the Inverter. Inspect the entire exterior of the Inverter to see if there are any scratches or other damage resulting from shipping. Use a screwdriver or other tools to check for tightness.

If any irregularities in the above items are found, contact the agency from which the Inverter was purchased or your Omron Yaskawa Motion Control representative immediately.
Checking the Installation Site
Protection covers are attached to the top and bottom of the NEMA 1 and IP00 Inverters. Be sure to remove the top cover before operating a 200 or 400 V Class Inverter with a capacity of 18.5 kW or less inside a panel. Observe the following precautions when mounting the Inverter:
Install the Inverter in a clean location which is free from oil mist and dust. It can be installed in a
totally enclosed panel that is completely shielded from floating dust.
When installing or operating the Inverter, always take special care so that metal powder, oil,
water, or other foreign matter does enter the Inverter.
Do not install the Inverter on combustible material, such as wood. Install the Inverter in a location free from radioactive materials and combustible materials. Install the Inverter in a location free from harmful gasses and liquids. Install the Inverter in a location without excessive oscillation. Install the Inverter in a location free from chlorides. Install the Inverter in a location without direct sunlight.

Installation Orientation

Install the Inverter vertically so as not to reduce the cooling effect. When installing the Inverter, always provide the following installation space to allow normal heat dissipation.
A B 200V class inverter, 0.55 to 90 kW 50 mm 120 mm 400V class inverter, 0.55 to 132 kW 200V class inverter, 110 kW 120 mm 120 mm 400V class inverter, 160 to 220 kW 400V class inverter, 300 kW 300 mm 300 mm

50mm min.

30mm min.

120mm min. Air

Horizontal Space

Vertical Space

Fig 2 Installation space
1. The same space is required horizontally and vertically for IP00, IP20 and NEMA 1 Inverters. 2. Always remove the top protection cover after installing an Inverter with an output of 18.5 kW or less in a panel. Always provide enough space for suspension eye bolts and the main circuit lines when installing an Inverter with an output of 22 kW or more in a panel.

IMPORTANT

Fig 4 Wiring Diagram

Main Circuit Terminals
Main circuit terminal functions are summarized according to terminal symbols in Table 1. Wire the terminals correctly for the desired purposes.
Table 1 Main Circuit Terminal Functions (200 V Class and 400 V Class)
Purpose Main circuit power input Inverter outputs DC bus terminals DC reactor connection Braking Unit connection Ground Terminal Symbol R/L1, S/L2, T/L3 R1/L11, S1/L21, T1/L31 U/T1, V/T2, W/T3 1, 1, 3, 2 Model: CIMR-E7Z 200 V Class 400 V Class 20P4 to 2110 40P4 to to to 4300 20P4 to 2110 40P4 to 4300 20P4 to 2110 20P4 to to 2110 20P4 to 2110 40P4 to 4300 40P4 to to 4300 40P4 to 4300
Control Circuit Terminals
Fig 5 shows the control terminal arrangement. The functions of the control circuit terminals are shown in Table 2. Use the appropriate terminals for the correct purposes.
Fig 5 Control terminal arrangement Table 2 Control Circuit Terminals with default settings
Type No. Signal Name Function Signal Level

S1 S2 S3

Digital input signals
Forward run/stop command Reverse run/stop command External fault input*1 Fault reset
Forward run when ON; stopped when OFF. Reverse run when ON; stopped when OFF. Fault when ON. Reset when ON

S4 S5 S6 S7 SC SN SP +V

Multi-step speed reference 1
24 VDC, 8 mA Photocoupler isolation Functions are Auxiliary frequency ref*1 selected by erence when ON. (Master/auxiliary switch) setting H1-01 to Multi-step speed reference 2 Multi-step speed 2 H1-05. *1 when ON. Jog frequency when ON. +24VDC power supply for digital inputs 15 V power supply for analog references 0 to +10 V/100% Auxiliary analog frequency reference; 4 to 20 mA (250) Function is selected by setting H3-09. 24 VDC, 250 mA max.
Jog frequency reference *1 Digital input common Digital Input Neutral Digital Input Power Supply 15 V power output Frequency reference Auxiliary Frequency Reference -15 V power output Analog reference common Shield wire, optional ground line connection point
15 V (Max. curr.: 20mA) 0 to +10 V (20 k) 4 to 20 mA (250) 0 V to +10 V (20k) 0 to 20 mA (250)

Analog input signals

A1 A2 -V AC E(G)
-15 V power supply for analog references

Signal Name

Function

Signal Level

Digital output signals

M2 M3 M4 MA MB MC FM

During run (1NO contact) Zero speed (1NO contact)

Closed during Run

Fault output signal
Function selected by H2- Relay contacts CLOSED when output 01 and H2-02 Contact capacity: frequency at zero level 1 A max. at 250 VAC (b2-01) or below 1 A max. at 30 VDC*3 CLOSED across MA and MC during faults OPEN across MB and MC during faults Analog output frequency signal; 0 to 10 V; 10V=FMAX Analog output power signal; 0 to 10V; 10V=max. appl. motor capacity Function selected by H4-04 Differential input, PHC isolation Differential input, PHC isolation Function selected by H4-to +10 V max. 5% 2 mA max.

Consider the following precautions for the main circuit power supply input.
If a moulded case circuit breaker is used for the power supply connection (R/L1, S/L2, and T/L3),
ensure that the circuit breaker is suitable for the Inverter.
If an earth leakage breaker is used, it should be able to detect all kinds of current should be used
in order to ensure a safe earth leakage current detection
A magnetic contactor or other switching device can be used at the inverter input. The inverter
should not be powered up more than once per hour.
The input phases (R/S/T) can be connected in any sequence. If the Inverter is connected to a large-capacity power transformer (600 kW or more) or a phase
advancing capacitor is switched nearby, an excessive peak current could flow through the input power circuit, causing an inverter damage. As a countermeasure install an optional AC Reactor at the inverter input or a DC reactor at the DC reactor connection terminals.
Use a surge absorber or diode for inductive loads near the Inverter. Inductive loads include mag-
netic contactors, electromagnetic relays, solenoid valves, solenoids, and magnetic brakes.
Wiring the Output Side of the Main Circuit
The following precautions should be considered for the output circuit wiring.
Never connect any power source to the inverter output terminals. Otherwise the inverter can be

damaged.

Never short or ground the output terminals. Otherwise the inverter can be damaged. Do not use phase correction capacitors. Otherwise the inverter and capacitors can be damaged. Check the control sequence to make sure, that the magnetic contactor (MC) between the Inverter
and motor is not turned ON or OFF during inverter operation. If the MC is turned ON during the Inverter is operation, a large inrush current will be created and the inverters overcurrent protection may operate.

Ground Connection

The following precautions should be considered for the ground connection.
Do not share the ground wire with other devices, such as welding machines or power tools. Always use a ground wire, that complies with technical standards on electrical equipment and
minimize the length of the ground wire. Leakage current is caused by the Inverter. Therefore, if the distance between the ground electrode and the ground terminal is too long, potential on the ground terminal of the Inverter will become unstable.
When more than one Inverter is used, do not to loop the ground wire.

Fig 7 Ground Wiring

Control Circuit Wiring Precautions
Consider the following precautions for wiring the control circuits.

User Parameters

Parameter Number Name Description Parameter Number Name Description

Initialize Data

Language selection for Digital OperaA1-00 tor display(JVOP160-OY only) 0:English 2:German 3:French 4:Italian 5:Spanish 6:Portuguese 0:Monitoring only (Monitoring drive mode and setting A1-01 and A104.) 1:Used to select user parameters (Only parameters set in A2-01 to A2-32 can be read and set.) 2:Advanced (Parameters can be read and set in both, quick programming mode (Q) and advanced programming mode (A). 0: No initializing 1110:Initializes using the user parameters 2220:Initializes using a two-wire sequence. (Initializes to the factory setting.) 3330: Initializes using a three-wire sequence. Sets the frequency reference input method. 0:Digital Operator 1:Control circuit terminal (analog input) 2:Serial communication (RS422 / 485) 3:Option Card Sets the run command input method. 0:Digital Operator 1:Control circuit terminal (digital inputs) 2:Serial communication (RS422 / 485) 3:Option Card Bi-directional b3-14 speed search selection
Disables or enables the bi-directional capabilities of the speed search function. 0:Disabled 1:Enabled 0:Disabled 1:Enabled 3:PI control enabled (frequency reference + PI output) Sets the proportional gain of the PI controller. P control is not performed when set 0.00. Sets the integral time of the PI controller. I control is not performed when set to 0.0 sec. Selects forward/reverse direction for PI output. 0:PI output is forward 1:PI output is reverse.

PI Control

PI control b5-01 mode selection Proportional (P) gain Integral (I) time

Parameter access level

PI output b5-09 characteristics selection

A1-03 Initialize

Accel/decel Sets the accel/decel time for the PI b5-17 time for PI refSoftstarter (SFS). erence b5-18 PI Setpoint Selection 0:Disabled 1:Enabled PI target value Sets the time to accelerate/decelerate from 0 Hz to the maximum output frequency.
Sequence / Reference Source
b5-19 PI Setpoint Acceleration/ Deceleration times
Acceleration / Deceleration Settings
Reference b1-01 source selection

S-Curve Settings

C2S-curve charSets the S-curve characteristic at acteristic time acceleration start and end. at acceleration Selects the carrier frequency (factory setting depends on Inverter capacity) 0: Low noise, low carrier 1: 2.0 kHz 2: 5.0 kHz 3: 8.0 kHz 4: 10.0 kHz 5: 12.5 kHz 6: 15.0 kHz F: Programmable pattern

RUN comb1-02 mand source selection

Carrier Frequency

Selects the stopping method when the Run signal is removed 0:Deceleration to stop Stopping b1-03 method selec- 1:Coast to stop 2:DC injection to stop tion 3:Coast to stop with timer (New Run commands are disregarded while coasting.) 0:Reverse enabled Prohibition of 1:Reverse disabled 2:Output Phase Rotation (both rotab1-04 reverse operational directions are enabled) tion 3:Output Phase Rotation with Reverse disabled.
Carrier freC6-02 quency selection

Speed Settings

d1-01 Multi speed references 1 to d1-04 to 4 Jog fred1-17 quency reference
Sets the multi-step speed references.

Speed Search

Speed search selection (curb3-01 rent detection or speed calculation) Enables/disables the speed search function and sets the speed search method. 0:Disabled, speed calculation 1:Enabled, speed calculation 2:Disabled, current detection 3:Enabled, current detection

Reference Limits

Frequency ref- Sets the frequency reference upper d2-01 erence upper limit in percent of the max. output frequency (E1-04) limit Frequency ref- Sets the frequency reference lower limit in percent of the max. output fred2-02 erence lower quency (E1-04) limit

Parameter Number

Description

V/f Pattern Settings

E1-01 Input voltage setting This setting is used as a reference value for protection functions.

Output Voltage (V)

Motor Protection
0:Disabled 1:General-purpose motor protection (fan cooled motor) 2:Inverter motor protection (externally cooled motor) 3:Vector motor protection When the Inverter power supply is turned off, the thermal value is reset, so even if it is enabled, protection may not be effective. 0:Disabled (DC bus undervoltage (UV1) detection) 1:Enabled (Restarted when the power returns within the time set in L2-02. When L2-02 is exceeded, DC bus undervoltage is detected.) 2:Enabled while CPU is operating. (Restarts when power returns during control operations. Does not detect DC bus undervoltage.) 0:Disabled (Acceleration as set. With a heavy load, the motor may stall.) 1:Enabled (Acceleration stopped when L3-02 level is exceeded. Acceleration starts again when the current has fallen below the stall prevention level). 2:Intelligent acceleration mode (Using the L3-02 level as a basis, acceleration is automatically adjusted. Set acceleration time is disregarded.) Effective when L3-01 is set to 1 or 2. Set as a percentage of Inverter rated current. 0:Disabled (Deceleration as set. If deceleration time is too short, a DC bus overvoltage may result.) 1:Enabled (Deceleration is stopped when the DC bus voltage exceeds the stall prevention level. Deceleration restarts when the voltage falls below the stall prevention level again.) 2:Intelligent deceleration mode (Deceleration rate is automatically adjusted so that the Inverter can decelerate in the shortest possible time. The set deceleration time is disregarded.) When a braking option (Braking Unit) is used, always set to 0.

Max. output E1-04 frequency (FMAX) Max. output E1-05 voltage (VMAX)
Motor protection selection

Power Loss Ride Through

Frequency (Hz)

Base frequency (FA)

Base Voltage (VBASE)
To set V/f characteristics in a straight line, set the same values for E1-07 and E1-09. In this case, the setting for E1-08 will be disregarded. Always ensure that the four frequencies are set in the following order: E1-04 (FMAX) E1-06 (FA) > E1-07 (FB) E1-09 (FMIN)
Momentary L2-01 power loss detection

Motor Data Settings

E2-01 E2-03 E2-05 Motor rated current Motor no-load current Motor line-toline resistance Sets the motor data. Set the correct values if the thermal motor protection is used.

Stall Prevention

Stall prevenL3-01 tion selection during accel

Digital I/O Settings

H1-01 Terminal S3 to Refer to page 20, Digital Input Function Selections (H1-01 to H1-05) for a S7 function to H1-05 selection list of selections Terminal M1H2-01 M2 and M3and M4 function H2-02 selection Refer to page 20, Digital Output Function Selections for a list of selections
Stall prevenL3-02 tion level during accel

Analog I/O Settings

Selects the signal level input at multifunction analog input A2. Analog input 0:0 to +10V (11 bit). H3-08 A2 signal level 2:4 to 20 mA (9-bit input). 3:0 to 20 mA (9-bit input) selection Ensure to switch S1-2 to V before using a voltage input. Analog input H3-09 A2 function selection. Selects the multi-function analog input function for terminal A2. Selects on which terminal the main frequency reference can be input. 0:Use analog input 1 on terminal A1 for main frequency reference. 1:Use analog input 2 on terminal A2 for main frequency reference.
Stall prevenL3-04 tion selection during decel
Terminal A1/ A2 switching
Terminal FM H4-01 monitor selecSets the number of the monitor item tion to be output (U1) at terminal FM/ Terminal AM AM. H4-04 monitor selection H4-05 Terminal AM gain Sets the analog output AM gain. Sets the percentage of the monitor value that is equal to 10V output at terminal AM.
0:Disabled (Runs as set. With a heavy load, the motor may stall.) Stall preven1:Deceleration using deceleration L3-05 tion selection time 1 (C1-02.) during running 2:Deceleration using deceleration time 2 (C1-04.) Stall prevenL3-06 tion level during running Effective when L3-05 is 1 or 2. Set as a percentage of the Inverter rated current.

Fault Restart

Number of L5-01 auto restart attempts

Sets the number of auto restart attempts. Automatically restarts after a fault and conducts a speed search from the run frequency. Sets whether a fault relay is activated during fault restart. 0:No output (Fault relay is not activated.) 1:Output (Fault relay is activated.) 0:Load detection disabled. 1:Overload detection only at speed agree; operation continues (alarm). 2:Overload detection continuously during operation; operation continues (alarm). 3:Overload detection only at speed agree; coast to stop (fault). 4:Overload detection continuously during operation; coast to stop (fault). 5:Loss of load detection only at speed agree; operation continues (alarm). 6:Loss of load detection continuously during operation; operation continues (alarm). 7:Loss of Load detection only at speed agree; coast to stop (fault). 8:Loss of Load detection continuously during operation; coast to stop (fault). Inverter rated current is set as 100%. Sets the overload/loss of load detection time.
Shows output ON/OFF status.
1: Multi-function contact output 1 (M1-M2) is ON 1: Multi-function contact output 2 (M3-M4) is ON 1: Multi-function contact output 3 (M5-M6) is ON Not used (Always 0). 1: Error output (MA/MB-MC) is ON
Auto restart L5-02 operation selection

Output terminal status

Torque Detection
Inverter operating status.
Run 1: Zero speed 1: Reverse 1: Reset signal input 1: Speed agree 1: Inverter ready 1: Minor fault 1: Major fault

Load detection selection

Operation status

L6-02 L6-03

Load detection level Load detection time
U1-13 Cumulative operation time in hrs. U1-24 PI feedback value in % U1-29 Cumulated energy display 1 in kWh U1-30 Cumulated energy display 2 in MWh U1-34 OPE fault parameter U1-36 PI input volume in % U1-37 PI output volume in % U1-38 PI setpoint volume in % U1-40 Cooling fan operating time in hrs. U1-53 PI feedback 2 in %

Monitor Data

U1-01 Frequency reference in Hz / rpm U1-02 Output frequency in Hz / rpm U1-03 Output current in A U1-06 Output voltage in VAC U1-07 DC bus voltage in VDC U1-08 Output power in kW Shows input ON/OFF status.

1: FWD command (S1) is ON 1: REV command (S2) is ON 1: Multi input 1 (S3) is ON 1: Multi input 2 (S4) is ON 1: Multi input 3 (S5) is ON 1: Multi input 4 (S6) is ON 1: Multi input 5 (S7) is ON

Fault Trace Data

U2-01 Current fault U2-02 Last fault U2-03 Reference frequency at fault U2-04 Output frequency at fault U2-05 Output current at fault U2-07 Output voltage reference at fault U2-08 DC bus voltage at fault U2-09 Output power at fault U2-11 Input terminal status at fault U2-12 Output terminal status at fault U2-13 Operation status at fault U2-14 Cumulative operation time at fault

Input terminal status

Fault History Data
U3-01 to Last fault to fourth last fault U3-04 U3-05 to Cumulative operation time at fault 1 to 4 U3-08
U3-09 to Fifth last to tenth last fault U3-14 U3-15 to Accumulated time of fifth to tenth fault U3-20 * The following faults are not recorded in the error log: CPF00, 01, 02, 03, UV1, and UV2.
Digital Input Function Selections (H1-01 to H1-05)
6 F 20 to 2F Multi-step speed reference 1 Multi-step speed reference 2 Jog frequency command (higher priority than multistep speed reference) Not used (Set when a terminal is not used) Fault reset (Reset when turned ON) PI control disable External fault; Input mode: NO contact/NC contact, Detection mode: Normal/during operation
Digital Output Function Selections (H2-01 and H2-02
F 10 1A 1F During run 1 (ON: run command is ON or voltage is being output) Inverter operation ready; READY: After initialization or no faults Not used. (Set when the terminal is not used.) Minor fault (Alarm) (ON: Alarm displayed) During reverse run (ON: During reverse run) Motor overload (OL1, including OH3) pre-alarm (ON: 90% or more of the detection level)

Troubleshooting

General Faults and Alarms
Faults and Alarms indicate unsusal inverter / application conditions. An alarm does not necessarily switch of the inverter but a message is displayed on the keypad (i.e. a flashing alarm code) and an alarm output can be generated at the multi-function outputs (H2-01 and H2-02) if programmed. An alarm automatically disappears if the alarm condition is not present anymore. A fault switches the inverter output off immediately, a message is displayed on the keypad and the fault output is switched. The fault must be reset manually after the cause and the RUN signal have been removed. The following table shows a list of faults and alarms with their corrective actions.

(only in stop conditio)

Operator Programming Errors
An Operator Programming Error (OPE) occurs when two or more parameter related to each other are set inappropriately or an individual parameter setting is incorrect. The Inverter does not operate until the parameter setting is corrected; however, no other alarm or fault output will occur. If an OPE occurs, change the related parameter by checking the cause shown in the table below. When an OPE error is displayed, press the ENTER key to see U1-34 (OPE Detected). This monitor displays the parameter that is causing the OPE error.
Display Meaning Inverter kVA Setting Error Parameter Setting is out of its range Corrective Actions Enter the correct kVA setting in o2-04. Verify the parameter settings.
Meaning Corrective Actions Multi-function Input Selection Error One of the following errors has been made in the multifunction input (H1-01 to H1-05) settings: Duplicate functions were selected. UP/DOWN command (setting 10 and 11) were not set simultaneously. The UP/DOWN commands (10 and 11) and Accel/ Verify the parameter settings in H1decel ramp hold (A) were set at the same time. More than one of the Speed Search inputs (61, 62, 64) were set simoultaneosly. External Baseblock NO (8) and External Baseblock NC (9) were set at the same time. The UP/DOWN commands (10 and 11) were selected while PI Control (b5-01) was enabled. The Emergency Stop Command NO and NC were set at the same time. Motor Preheat (60) and Motor Preheat 2 (80) were set simultaneously. Emergency Override FWD (81) and Emergency Override REV (82) are set simultaneously.
Verify the parameter settings in H1-
RUN/Reference Command Selection Error Verify that the board is installed. Remove the power The Reference Source Selection b1-01 and/or the RUN supply and re-install the option board again Source Selection parameter b1-02 are set to 3 (option Recheck the setting of b1-01 and b1-02. board) but no option board is installed. PI Control Setup Error The following settings have been made at the same time. b5-01 (PI Control Mode Selection) has been set to a Check the settings of parameters b5-01, b5-15 and value different from 0. b1-03. b5-15 (PI Sleep Function Operation Level) has been set to a value different from 0. b1-03 (Stopping Method Selection) has been set to 2 or 3. V/f Parameter Setting Error Check parameters (E1). A frequency/voltage value may be set higher than the maximum frequency/voltage.

Autotuning Faults

Autotuning faults are shown below. When the following faults are detected, the fault is displayed on the digital operator and the motor coasts to stop. No fault or alarm outputs will be operated.

Display Motor data fault Meaning Corrective Actions Check the input data. Check the Inverter and motor capacity. Check the motor rated current setting. Check the input data. Check wiring and the machine. Check the load. -

Alarm STOP key input

Line-to-Line Resistance Fault Autotuning could not be completetd in the speci Check the input data. fied time Check the motor wiring. The autotuning result is outside the parameter setting range Rated Current Setting Alarm Displayed after auto-tuning is complete Check the motor rated current value. During auto-tuning, the measured value of motor rated current (E2-01) was higher than the set value.