Alarm And Error Displays - YASKAWA L1000A Technical Manual

◆ Alarm and Error Displays

■
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 triggers. 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 254
boL Braking Transistor Overload
bUS Option Communication Error
MEMOBUS/Modbus Communication
CE
Error
CF Control Fault
,
CPF00, CPF01 Control Circuit Error
<1>
CPF02 A/D Conversion Error
CPF03 Control Board Connection Error
CPF06 EEPROM Data Error
, CPF07,
Terminal Board Connection Error
CPF08
,
CPF20, CPF21 Control Circuit Error
<1>
CPF22 Hybrid IC Failure
CPF23 Control Board Connection Error
CPF24 Drive Unit Signal Fault
to
CPF26 to CPF34 Control Circuit Error
Speed Deviation (for Control Mode with
dEv
Encoder)
dv1 Encoder Z Pulse Fault
dv2 Z Pulse Noise Fault Detection
dv3 Inversion Detection
dv4 Inversion Prevention Detection
dv6 Overacceleration Detection
dv7 Rotor Polarity Detection Timeover
dv8 PM Rotor Position Estimation Error
EF0 Option Card External Fault
to
EF3 to EF8 External Fault (input terminal S3 to S8)
Err EEPROM Write Error
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
for a list of alarm codes.
Table 6.2 Fault Displays (1)
257
257
257
257
257
257
258
,
258
,
258
to
258
258
to
258
258
258
,
259
259
to
259
259
259
259
260
,
260
260
to
260
260
6.2 Drive Alarms, Faults, and Errors
FrL Speed Reference Missing
GF Ground Fault
LF Output Phase Loss
LF2 Output Current Imbalance
oC Overcurrent
Option Card Connection Error at Option
oFA00
Connector CN5-A
Option Card Fault at Option Connector
oFA01
CN5-A
oFA05, oFA06
oFA10, oFA11
Option Card Error Occurred at Option Port
CN5-A
oFA12 to oFA17
oFA30 to oFA43
oFb00 Option Card Connection Error (CN5-B)
oFb01 Option Card Fault (CN5-B)
oFb02 Option Card Fault (CN5-B)
oFb03, oFb11 Option Card Error (CN5-B)
oFb12 to oFb17 Option Card Connection Error (CN5-B)
oFC00 Option Card Connection Error (CN5-C)
oFC01 Option Card Fault (CN5-C)
oFC02 Option Card Fault (CN5-C)
oFC03, oFC11 Option Card Error (CN5-C)
oFC12 to oFC17 Option Card Connection Error (CN5-C)
oFC50 Encoder Option AD Conversion Error
261
261
261
261
261
262
262
262
262
262
262
262
262
263
263
263
6
263
263
263
263
263
263
253