<3> Uv1 fault is not saved to the fault history
n
Minor Faults and Alarms
When a minor fault or alarm occurs, the ALM LED flashes and the text display shows an
alarm code. A fault has occurred if the text remains lit and does not flash. Refer to Alarm
Detection on page 140. An overvoltage situation, for example, can trigger both faults and
minor
faults.
It is therefore important to note whether the LEDs remain lit or if the LEDs flash.
Table 5.5 Minor Fault and Alarm Displays
LED Operator Display Name
Minor Fault
Output
(H2-01 = 10)
Pg.
bb Drive Baseblock No output 140
CALL Serial Communication Transmission Error YES 140
CE MEMOBUS/Modbus Communication Error YES 140
CrST Cannot Reset YES 141
EF Run Command Input Error YES 141
to EF1 to
EF5
External Fault (input terminal S1 to S5) YES 141
oH Heatsink Overheat YES 142
oL3 Overtorque 1 YES 143
ov Overvoltage YES 143
PASS MEMOBUS/Modbus Test Mode Complete No output 143
SE MEMOBUS/Modbus Test Mode Fault YES 143
Uv Undervoltage YES 144
n
Operation Errors
Table 5.6
Operation Error Displays
LED Operator
Display
Name Pg.
oPE01 Drive Unit Setting Error 145
oPE02
Parameter Setting Range
Error
145
oPE03
Multi-Function Input Setting
Error
145
LED Operator
Display
Name Pg.
oPE05
Run Command Selection
Error
146
oPE10 V/f Data Setting Error 146
oPE11
Carrier Frequency Setting
Error
146
5.3 Drive Alarms, Faults, and Errors
YASKAWA ELECTRIC TOEP C710606 26B YASKAWA AC Drive – J1000 Quick Start Guide
129
5
Troubleshooting
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