YASKAWA CIMR-DC2A0050BAA Quick Start Manual page 45

Digital Operator AL FL
Internal Circulation
Fan Fault
 
Fan
Power Supply
Frequency Fault
 
Fdv
AC Fuse Blowout
–  The power supply fuse burned out.
FUA
DC Fuse Blowout
– 
FUd
Current Alarm
 – Load is too heavy.
HCA
Ground Fault
– 
GF
YASKAWA ELECTRIC TOEP C710656 06E YASKAWA Power Regenerative Converter - D1000 Quick Start Guide
Cause
An internal circulation fan is faulty
(2A0130, 4A0130 to 4A0370).
An internal circulation fan or MC power
supply is faulty (2A0130, 4A0130 to
4A0370).
A momentary power loss occurred.
An input power supply wiring terminal is
loose.
The fluctuation in the voltage of the input
power supply is too large.
The AC power supply fuse burned out.
The phase rotation direction has changed
in the input power supply.
The detected power supply frequency
exceeded the allowable value.
The main transistor failed.
The DC circuit fuse burned out.
The drive failed.
A damaged cable is creating a short
circuit.
Excessive leakage current at the drive
output.
Hardware problem
The wiring of the power supply voltage
detection circuits ( ,
r1/ 11 1/ 21
) and the wiring of the main circuit
t1/ 31
terminals (R/L1, S/L2, and T/L3) is not
correct.
• Cycle the power supply and see if the fault occurs again.
• Check the operation of the internal circulation fans.
• Check U4-03 (Cooling Fan Operation Time) and U4-04 (Cooling
Fan Maintenance Display).
If the life of the internal circulation fans has expired or if a fan is faulty,
perform fan replacement according to instructions in this manual.
Cycle the power supply and see if the fault occurs again.
If the fault occurs repeatedly, replace the board or the converter. For
information on board replacement, consult with your Yaskawa
representative or the nearest Yaskawa sales office.
Investigate and correct the cause and reset the fault.
• A transistor inside the converter was destroyed.
• The input wiring or drive output has ground faulted or short
circuited.
Contact your Yaskawa representative or the nearest Yaskawa sales
office.
Correct the wiring.
Improve the power supply.
• A transistor inside the converter was destroyed.
• The input wiring or drive output has ground faulted or short
circuited.
Contact your Yaskawa representative or the nearest Yaskawa sales
office.
Replace the converter.
Replace the drive.
For information on drive replacement, consult with your Yaskawa
representative or the nearest Yaskawa sales office.
Reduce the load for applications with repetitive operations (i.e., stops
and starts), or replace the converter.
Check the cable.
• Remove the short circuit and reapply power to the converter.
• Check the resistance between the cable and the ground terminal
• Replace the cable.
Reduce the amount of stray capacitance.
If the problem continues, replace the control board or the entire
converter. Contact Yaskawa or a Yaskawa representative for
instructions on replacing the control board.
, and
Correct the wiring.
9 Troubleshooting
Corrective Action
.
45