Diagnosing And Resetting Faults; Fault And Power Loss Occur At The Same Time; Fault Occurs Without Power Loss; Fault Reset Procedure - YASKAWA CIPR-CR70A Series Technical Manual

6 Troubleshooting
ndAT Error Received Data
rdEr Error Reading Data
vAEr Voltage Class, Capacity
Mismatch
vFyE Parameters do not Match
◆

Diagnosing and Resetting Faults

When a fault occurs and the drive stops, do the procedures in this section to remove the cause of the fault, then re-
energize the drive.
■

Fault and Power Loss Occur at the Same Time

WARNING
Sudden Movement Hazard. Do not do work on the drive without eye protection. Wear eye protection before
you start work on the drive. Failure to obey could cause serious injury or death.
WARNING
Electrical Shock Hazard. Do not immediately energize the drive or operate peripheral devices after the drive
blows a fuse or trips an ELCB. Wait for the time specified on the warning label at a minimum and make sure that all indicators
are OFF. Then check the wiring and peripheral device ratings to find the cause of the problem. Contact Yaskawa before
energizing the drive or peripheral devices if the cause is not known. Failure to obey can cause death or serious injury and
damage to the drive.
1.
Supply power to the control circuit from the external 24 V input.
2.
Use monitor parameters U2-xx to display the fault code and data on the operating status of the drive just
before the fault occurred.
3.
Use the information in the Troubleshooting tables to remove the fault.
Note:
1. To find the faults that were triggered, check the fault history in U2-02 [Previous Fault]. To find information about drive status (such
as frequency, current, and voltage) when the faults were triggered, check U2-03 to U2-20.
2. If the fault display stays after you re-energize the drive, remove the cause of the fault and reset.
■

Fault Occurs Without Power Loss

1.
Examine the fault code shown on the keypad.
2.
Use the information in the Troubleshooting tables to remove the fault.
3.
Do a fault reset.
■

Fault Reset Procedure

If a fault occurs, you must remove the cause of the fault and re-energize the drive. The table below lists the
different methods to reset the drive after a fault.
356
The parameter settings for model and
specifications (power supply voltage
and capacity) are different between the
keypad and the drive.
The parameters are not stored in the
keypad.
Backup was executed with o3-02 = 0
[Copy Allowed Selection = Disabled]
set.
The power supply specifications or
drive capacity parameter settings are
different between the keypad and the
drive.
The parameters that are backed up in the
keypad and the parameters in the drive
are not the same.
YASKAWA ELECTRIC SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
1. Make sure that drive model and the value set in
o2-04 [Drive Model (KVA) Selection] are the
same.
2. Restore the parameters.
1. Connect a keypad that has the correct
parameters.
2. Restore the parameters.
Set o3-02 = 1 [Enabled] and backup again.
1. Make sure that drive model and the value set in
o2-04 [Drive Model (KVA) Selection] are the
same.
2. Restore the parameters.
1. Restore or backup the parameter again.
2. Verify the parameters.