YASKAWA CIPR-GA50C series Technical Manual

7.4 Fault
276 YASKAWA SIEPC71061753C GA500 Technical Manual
Code Name Causes Possible Solutions
The drive input power voltage is changing too
much.
• Examine the input power for problems.
• Make the drive input power stable.
• If the input power supply is good, examine the magnetic
contactor on the main circuit side for problems.
There was a loss of power. Use a better power supply.
The main circuit capacitors have become
unserviceable.
Examine the capacitor maintenance time in monitor U4-05
[CapacitorMaintenance]. If U4-05 is more than 90%, replace the
control board or the drive. For information about replacing the
control board, contact Yaskawa or your nearest sales
representative.
The relay or contactor on the soft-charge bypass
relay is damaged.
U4-06 [PreChargeRelayMainte] shows the performance life of
the soft-charge bypass relay. If U4-06 is more than 90%, replace
the board or the drive. For information about replacing the board,
contact Yaskawa or your nearest sales representative.
Note:
• The drive detects this error if the DC bus voltage decreases below the level set in L2-05 [Undervoltage Detection Lvl (Uv1)] while the drive is running.
• The Uv1 detection level is approximately 190 V for a 200 V class drives. The detection level is approximately 380 V for 400 V class drives. The detection level is
approximately 350 V when E1-01 [Input AC Supply Voltage] < 400.
• Do a Fault Reset to clear the fault.
• Fault trace is not available for this fault.
• L5-08 [Fault Reset Enable Select Grp2] disables the Auto Restart function.
Code Name Causes Possible Solutions
Uv2 Control Power Undervoltage
The value set in L2-02 [Power Loss Ride Through
Time] increased and the momentary power loss
recovery unit is not connected to the drive.
Connect the momentary power loss recovery unit to the drive.
There was a problem with the drive hardware. • 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.
Note:
• The drive detects this error if the control power supply voltage decreases.
• Do a Fault Reset to clear the fault.
• Fault trace is not available for this fault.
Code Name Causes Possible Solutions
Uv3 Soft Charge Answerback Fault
There is damage to the relay or contactor on the
soft-charge bypass relay.
• Re-energize the drive.
• If the fault stays, replace the control board or the drive.
• Monitor U4-06 [PreChargeRelayMainte] shows the
performance life of the soft-charge bypass relay. If U4-06 is
more than 90%, replace the board or the drive. For information
about replacing the control board, contact Yaskawa or your
nearest sales representative.
Air inside the drive is too hot. Decrease the ambient temperature of the drive.
Note:
• Do a Fault Reset to clear the fault.
• Fault trace is not available for these faults.

YASKAWA CIPR-GA50C series Specifications

General

Brand	YASKAWA
Model	CIPR-GA50C series
Category	Controller
Language	English