YASKAWA GA800 600 V Drive Installation & Primary Operation page 67

For industrial applications

Hide thumbs

Table Of Contents

Table of Contents

Code

Name

Control Fault

CoF

Current Offset Fault

CP1

Comparator 1 Limit Fault

CP2

Comparator 2 Limit Fault

CPF00 to

Control Circuit Error

CPF03, CPF07

to CPF08,

CPF11 to

CPF14, CPF16

to CPF24, and

CPF26 to

CPF39

CPF06

EEPROM Memory Data Error

dEv

Speed Deviation

EEPROM Memory DWEZ Data

dWF1

Error

dWFL

DriveWorksEZ Fault

MECHATROLINK Watchdog Timer

Err

EF0

Option Card External Fault

EF1

External Fault (Terminal S1)

EF2

External Fault (Terminal S2)

EF3

External Fault (Terminal S3)

EF4

External Fault (Terminal S4)

EF5

External Fault (Terminal S5)

YASKAWA TOEPC7106170VA GA800 600 V Drive Installation & Primary Operation

Causes

Electrical interference caused a communication data

error.

Motor parameters are set incorrectly

The drive starts operation while the induced voltage

stays in the motor (during coasting to a stop or after

fast deceleration).

The monitor value set in H2-20 [Comparator 1

Monitor Selection] was in the range of H2-21

[Comparator 1 Lower Limit] and H2-22

[Comparator 1 Upper Limit].

The monitor value set in H2-26 [Comparator 2

Monitor Selection] was not in the range of H2-27

[Comparator 2 Lower Limit] and H2-28

[Comparator 2 Upper Limit].

A drive hardware problem occurred.

The drive power supply was de-energized while a

communication option card entered a parameter Write

command.

The load is too heavy.

There is an error in the EEPROM peripheral circuit.

There was a fault in the DriveWorksEZ program.

The drive detected a watchdog circuit exception while

it received data from the controller.

The communication option received an external fault

from the controller.

MFDI terminal S1 caused an external fault through an

external device.

MFDI terminal S2 caused an external fault through an

external device.

MFDI terminal S3 caused an external fault through an

external device.

MFDI terminal S4 caused an external fault through an

external device.

MFDI terminal S5 caused an external fault through an

external device.

18 Troubleshooting

Possible Solutions

• Examine the control circuit lines, main circuit lines, and ground

wiring, and decrease the effects of electrical interference.

• Make sure that a magnetic contactor is not the source of the

electrical interference, then use a Surge Protective Device if

necessary.

• Use only the recommended cables or other shielded line. Ground

the shield on the controller side or the drive input power side.

• Separate the communication wiring from drive power lines, and

install a noise filter to the input side of the power supply for

communication.

• Decrease the effects of electrical interference from the controller.

Correctly set the motor parameters and do Auto-Tuning again.

• Make a sequence that does not restart operation when induced

voltage stays in the motor.

• Set b3-01 = 1 [Speed Search at Start Selection = Enabled].

• Use Speed Search from Fmax or Fref [H1-xx = 61, 62] to do a

speed search through one of the external terminals.

Examine the monitor value and remove the cause of the fault.

• Re-energize the drive.

• If the fault stays, replace the control board or the drive. For

information about replacing the control board, contact Yaskawa

or your nearest sales representative.

Set A1-03 = 2220, 3330 [Initialize Parameters = 2-Wire

Initialization, 3-Wire Initialization] and initialize the drive.

Decrease the load.

• Re-energize the drive.

• If the fault stays, replace the control board or the drive. For

information about replacing the control board, contact Yaskawa

or your nearest sales representative.

Examine the DriveWorksEZ program and remove the cause of the

fault. This is not a drive fault.

Examine the MECHATROLINK cable connection. If this error

occurs frequently, examine the wiring and decrease the effects of

electrical interference as specified by these manuals:

• MECHATROLINK-II Installation Guide (MECHATROLINK

Members Association, manual number MMATDEP011)

• MECHATROLINK-III Installation Manual (MECHATROLINK

Members Association, publication number MMATDEP018)