YASKAWA Lift Inverter L1000V, Technical Manual

Page: 167 / 282

6.2 Drive Alarms, Faults, and Errors
YASKAWA EUROPE SIEP YASKAWA AC Drive L1000V Technical Manual 167
Tr
ouble
s
ho
ot
in
g
6
u
Alarm and Error Displays
n
Faults
Table 6.2 gives an overview of possible fault codes. Conditions such as overvoltages can trip faults and alarms. It is
important to distinguish between faults and alarms to determine the proper corrective actions.
When the drive detects a fault, the ALM indicator LED lights, the fault code appears on the digital operator, and the fault
contact MA-MB-MC changes state. An alarm is present if the ALM LED blinks and the fault code on the digital operator
flashes. Refer to
Minor Faults and Alarms on page 168 for a list of alarm codes.
Table 6.2 Fault Displays (1)
Digital Operator Display
Name Page
Digital Operator Display
Name Page
LED Operator LCD Operator LED Operator LCD Operator
CF Control Fault 170 GF Ground Fault 172
CoF Current Offset Fault 170 LF Output Phase Loss 172
,
CPF00,
CPF01
Control Circuit Error 170
LF2 Output Current Imbalance 172
oC Overcurrent 173
CPF02 A/D Conversion Error 170 oH Heatsink Overheat 173
CPF03 Control Board Connection Error 170 oH1 Heatsink Overheat 173
CPF06 EEPROM Data Error 170 oL1 Motor Overload 173
, CPF07,
CPF08
Terminal Board Connection Error 170
oL2 Drive Overload 174
oL3 Overtorque Detection 1 174
CPF11 RAM Fault 171 oL4 Overtorque Detection 2 174
CPF12 FLASH Memory Fault 171 oPr Operator Connection Fault 174
CPF13 Watchdog Circuit Exception 171 oS
Overspeed (simple PG feedback control
modes)
174
CPF14 Control Circuit Fault 171 ov DC Bus Overvoltage 174
CPF16 Clock Fault 171 PF Input Phase Loss 175
CPF17 Timing Fault
171
PGo
Encoder Disconnected (simple PG
feedback control modes)
175
CPF18 Control Circuit Error rr Dynamic Braking Transistor Fault 175
CPF19 Control Circuit Error 171 SE1 Motor Contactor Response Error 175
,
CPF20,
CPF21
Control Circuit Error 171
SE2 Starting Current Error 175
SE3 Output Current Error 175
CPF22 A/D Conversion Error 171 SE4 Brake Response Error 175
CPF23 Control Board Connection Error 171 UL3 Undertorque Detection 1 176
CPF24 Drive Unit Signal Fault 171 UL4 Undertorque Detection 2 176
dEv
Excessive Speed Deviation (simple PG
feedback control modes)
171 Uv1 DC Bus Undervoltage 176
to
EF3 to
EF7
External Fault (input terminal S3 to S7) 172
Uv2 Control Power Supply Voltage Fault 176
Uv3 Soft Charge Circuit Fault 176
Err EEPROM Write Error 172 voF Output Voltage Detection Error 176