5.4 Drive Alarms, Faults, and Errors
198 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Note: If faults CPF11 through CPF19 occur, the LED operator will display or
.
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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 224.
Note: An overvoltage situation can trigger both faults and minor faults, therefore it is
important to note whether the LEDs remain lit or if the LEDs flash.
The following table illustrates LED operator after minor faults or errors.
Table 5.6 Minor Fault and Alarm Displays
oH3
Motor Overheat 1 (PTC
input)
214 PGo
PG Disconnect
(for Simple V/f with PG)
220
oH4
Motor Overheat 2 (PTC
input)
214 rH Dynamic Braking Resistor 220
oL1 Motor Overload 215 rr
Dynamic Braking
Transistor
220
oL2 Drive Overload 216 SEr
Too Many Speed Search
Restarts
221
oL3 Overtorque Detection 1 216 STO Pull-Out Detection 221
oL4 Overtorque Detection 2 217 UL3 Undertorque Detection 1 221
oL7 High Slip Braking OL 217 UL4 Undertorque Detection 2 221
oPr Operator Connection Fault 217 Uv1 Undervoltage 222
oS
Overspeed
(for Simple V/f with PG)
217 Uv2
Control Power Supply
Undervoltage
222
ov Overvoltage 218 Uv3 Soft Charge Circuit Fault 222
PF Input Phase Loss 219
LED Operator Display Name
Minor Fault
Output
(H2- = 10)
Page
bb Drive Baseblock No output 224
LED Operator
Display
Name Page
LED Operator
Display
Name Page
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