Yaskawa AC Drive Z1000 Bypass Technical Manual - Manual (Page 222)

u Alarm and Error Displays
n Faults
Table 6.4 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 HOA keypad, and the fault contact
DO-10 triggers. An alarm is present if the ALM LED blinks and the fault code on the HOA keypad flashes. Refer to Minor
Faults and Alarms on page 223 for a list of alarm codes.
Table 6.4 Fault Displays
HOA
Keypad
Display
Name Page
bAT HOA Keypad Battery Voltage Low 224
bUS Option Communication Error 224
CE MEMOBUS/Modbus Communication Error 224
CoF Current Offset Fault 224
CPF00,
CPF01
<1>
Control Circuit Error 225
CPF02 A/D Conversion Error 225
CPF03 Control Board Connection Error 225
CPF06 EEPROM Memory Data Error 225
CPF07,
CPF08
Terminal Board Connection Error 225
CPF20,
CPF21
<2>
Control Circuit Error 225
CPF22 Hybrid IC Error 226
CPF23 Control Board Connection Error 226
CPF24 Drive Unit Signal Fault 226
EF0 Option Card External Fault 226
Err EEPROM Write Error 226
FAn Internal Fan Fault 226
Fn1 External Fan Fault 230
FB01 Safety Open 227
FB02 BAS Interlock Open Time Out 227
FB03 External Fault Bypass (EFB) 227
FB05 Motor Overload 227
FB06 External Motor 1 Overload 228
FB07 External Motor 2 Overload 228
FB08 Phase Loss Brownout 228
FB09 Phase Loss Blackout 228
FB10 No Drive Comms 229
FB11 Bypass Board Hardware Error 229
FB12 Option Board Comms 229
FB13 Loss of Load 229
FB14 Serial Communications Fault 229
HOA
Keypad
Display
Name Page
FB15 <3> Input Phase Loss 230
FB16 <3> Input Phase Rotation 230
FbH Excessive PI Feedback 230
FbL PI Feedback Loss 230
GF Ground Fault 230
LF Output Phase Loss 231
LF2 Current Imbalance 231
nSE Node Setup Error 231
oC Overcurrent 231
oFA00 Option Card Connection Error (CN5) 232
oH Heatsink Overheat 232
oH1 Heatsink Overheat 232
oH3 Motor Overheat Alarm (PTC input) 233
oH4 Motor Overheat Fault (PTC input) 233
oL1 Motor Overload 233
oL2 Drive Overload 234
oL3 Overtorque Detection 1 234
oL7 High Slip Braking oL 234
oPr Operator Connection Fault 235
ov Overvoltage 235
ov2 Overvoltage 2 235
PF Input Phase Loss 235
SEr Too Many Speed Search Restarts 236
STo Pull-Out Detection 236
TdE Time Data Error 236
TIM Time Not Set 236
UL3 Undertorque Detection 1 236
UL6 Motor Underload 237
Uv1 Undervoltage 237
Uv2 Control Power Supply Undervoltage 237
Uv3 Soft Charge Circuit Fault 237
voF Output Voltage Detection Fault 238
<1> Displayed as CPF00 when occurring at drive power up. When one of the faults occurs after successfully starting the drive, the display will show
CPF01.
<2> Displayed as CPF20 when occurring at drive power up. When one of the faults occurs after successfully starting the drive, the display will show
CPF21.
<3> Available in bypass controller software versions VST800298 and later.
6.3 Drive Alarms, Faults, and Errors
222 YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual