Diagnosing And Resetting Faults; Diagnosing And Resetting Faults; Fault Occurs Simultaneously With Power Loss; If The Drive Still Has Power After A Fault Occurs - YASKAWA FSDrive-MV1000 Instructions Manual

5.10 Diagnosing and Resetting Faults

5.10 Diagnosing and Resetting Faults

When a fault occurs and the drive stops, follow the instructions below to remove whatever conditions triggered the fault,
then restart the drive.

◆ Fault Occurs Simultaneously with Power Loss

WARNING! Sudden Movement Hazard. Ensure there are no short circuits between the main circuit terminals (U, V, W) or between
the ground and main circuit terminals before restarting the drive. Failure to comply may result in serious injury or death
and will cause damage to equipment.
1.
Turn the control power on.
2.
Use monitor parameters U2-
occurred.
3.
Remove the cause of the fault and reset.
4.
Refer to Fault Displays, Causes, and Possible Solutions on page 118
data.
Note: 1. To find out what faults were triggered, check the fault history in U2-02 (Previous Fault). Information on drive status when the fault
occurred such as the frequency, current, and voltage can be found in U2-03 through U2-31.
Refer to Viewing Fault Trace Data After Fault on page 150
2. When the fault continues to be displayed after cycling power, remove the cause of the fault and reset.

◆ If the Drive Still has Power After a Fault Occurs

1.
Turn the main circuit power supply off.
2.
Look at the digital operator for information on the fault that occurred.
3.
Remove the cause of the fault and reset.
Refer to Fault Displays, Causes, and Possible Solutions on page
4.
Reset the fault.
Refer to Fault Reset Methods on page

◆ Viewing Fault Trace Data After Fault

A checking method is shown here using an example in which the drive detects oL2 (Drive Overheat).
1 Turn on the drive input power. The first screen displays.
2 Press
until the monitor screen is displayed.
3 Press
to display the parameter setting screen.
4 Press
and until U2-01 (Previous Fault) is displayed.
150
to display data on the operating status of the drive just before the fault
151.
Step
for information on how to view fault
for information on how to view fault data.
118.
YASKAWA ELECTRIC EZZ010928 FSDrive-MV1000 Instructions
Display/Result
- MODE - DRV Rdy
FREF (OPR)
U1-01= 0.00Hz
U1-02= 0.00Hz
LSEQ
U1-03= 0.0A
LREF
JOG FWD FWD/REV
- MODE - DRV Rdy
Monitor Menu
U1-01= 0.00Hz
U1-02= 0.00Hz
LSEQ
U1-03= 0.0A LREF
JOG FWD FWD/REV
-MONITR- DRV Rdy
Monitor
U1 -01= 0.00Hz
U1-02= 0.00Hz LSEQ
U1-03= 0.0A LREF
JOG FWD FWD/REV
-MONITR- DRV Rdy
Current Fault
U2 -01= –
U2-02= oL2 LSEQ
U2-03= 0.00Hz LREF
JOG FWD FWD/REV