YASKAWA CIMR-JA Series User Manual

5.4 Fault Detection
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Fault Displays, Causes, and Possible Solutions
Table 5.6 Detailed Fault Displays, Causes, and Possible Solutions
LED Operator Display Fault Name
CE
MEMOBUS/Modbus Communication Error
Control data was not received for the CE detection time set to H5-09.
Cause Possible Solution
Faulty communications wiring, or a
short circuit exists.
• Check for faulty wiring.
• Correct the wiring.
• Check for loose wiring and short circuits. Repair as needed.
A communications data error
occurred due to noise.
• Check the various options available to minimize the effects of noise.
• Counteract noise in control circuit, main circuit, and ground wiring.
• Use Yaskawa-recommended cables, or another type of shielded line. Ground
the shield on the controller side or on the drive input power side.
• Ensure that other equipment
such as switches or relays do not cause noise and
use surge suppressors if required.
• Separate all wiring for communications devices from drive input power lines.
Install a noise filter to the input side of the drive input power.
LED Operator Display Fault Name
CoF
Current Offset Fault
There is a problem with the current detection circuit.
Cause Possible Solution
Drive hardware is damaged. Replace the drive.
LED Operator Display Fault Name
CPF02
A/D Conversion Error
An A/D conversion error occurred.
Cause Possible Solution
Control circuit is damaged. Cycle power to the drive. If the problem continues, replace the drive.
Control circuit terminals have
shorted out (+V, AC).
• Check for wiring errors along the control circuit terminals.
• Correct the wiring.
Check the resistance of the speed potentiometer and related wiring.
Control terminal input current has
exceeded allowable levels.
• Check the input current.
• Reduce the current input to control circuit terminal (+V) to 20 mA.
LED Operator Display Fault Name
CPF06
EEPROM Data Error
There is an error in the data saved to EEPROM.
Cause Possible Solution
Control circuit is damaged. Cycle power to the drive. If the problem continues, replace the drive.
The power supply was switched off
when parameters were written (e.g.,
using an option unit).
Reinitialize the drive (A1-03).
LED Operator Display Fault Name
CPF08
EEPROM Communication Fault
EEPROM communications are not functioning properly.
5.4 Fault Detection
126
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2/6/2008-14:44

YASKAWA CIMR-JA Series Specifications

General

Brand	YASKAWA
Model	CIMR-JA Series
Category	Controller
Language	English