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 227 for a list of alarm codes.
Table 6.4 Fault Displays
HOA Keypad
Display
Name Page
bAT HOA Keypad Battery Voltage Low 228
bUS Option Communication Error 228
CE
MEMOBUS/Modbus
Communication Error
228
CoF Current Offset Fault 228
CPF00, CPF01
<1>
Control Circuit Error 229
CPF02 A/D Conversion Error 229
CPF03 Control Board Connection Error 229
CPF06 EEPROM Memory Data Error 229
CPF07, CPF08 Terminal Board Connection Error 229
CPF20, CPF21
<2>
Control Circuit Error 230
CPF22 Hybrid IC Error 230
CPF23 Control Board Connection Error 230
CPF24 Drive Unit Signal Fault 230
EF0 Option Card External Fault 230
Err EEPROM Write Error 230
FAn Internal Fan Fault 230
Fn1 External Fan Fault 235
FB01 Safety Open 231
FB02 BAS Interlock Open Time Out 231
FB03 External Fault Bypass (EFB) 231
FB05 Motor Overload 231
FB06 External Motor 1 Overload 232
FB07 External Motor 2 Overload 232
FB08 Phase Loss Brownout 232
FB09 Phase Loss Blackout 233
FB10 No Drive Comms 233
FB11 Bypass Board Hardware Error 233
FB12 Option Board Comms 233
FB13 Loss of Load 233
FB14 Serial Communications Fault 233
FB15
<3>
Input Phase Loss 234
FB16
<3>
Input Phase Rotation 234
FB17
<4>
Load Lost 234
FB18
<4>
K3 Welded 234
FB19
<4>
Duplicate Input 234
FB20
<4>
Fire Stat (Safety) 234
HOA Keypad
Display
Name Page
FB21
<4>
Freeze Stat (Safety) 235
FB22
<4>
Smoke Alarm (Safety) 235
FB23
<4>
Over Pressure (Safety) 235
FB24
<4>
Low Suction (Safety) 235
FB25
<4>
Vibration Switch (Safety) 235
FB26
<4>
Option On Drive (Safety) 234
FbH Excessive PI Feedback 236
FbL PI Feedback Loss 236
GF Ground Fault 236
LF Output Phase Loss 236
LF2 Current Imbalance 237
nSE Node Setup Error 237
oC Overcurrent 237
oFA00 Option Card Connection Error (CN5) 238
oH Heatsink Overheat 238
oH1 Heatsink Overheat 238
oH3 Motor Overheat Alarm (PTC input) 238
oH4 Motor Overheat Fault (PTC input) 239
oL1 Motor Overload 239
oL2 Drive Overload 240
oL3 Overtorque Detection 1 240
oL7 High Slip Braking oL 240
oPr Operator Connection Fault 240
ov Overvoltage 240
ov2 Overvoltage 2 241
PF Input Phase Loss 241
SEr Too Many Speed Search Restarts 242
STo Pull-Out Detection 242
TdE Time Data Error 242
TIM Time Not Set 242
UL3 Undertorque Detection 1 242
UL6 Motor Underload 242
Uv1 Undervoltage 243
Uv2 Control Power Supply Undervoltage 243
Uv3 Soft Charge Circuit Fault 243
voF Output Voltage Detection Fault 243
<1> Displayed as CPF00 when occurring at drive power up. When a fault occurs after successfully starting the drive, the display will show CPF01.
<2> Displayed as CPF20 when occurring at drive power up. When a fault occurs after successfully starting the drive, the display will show CPF21.
<3> Available in bypass controller software versions VST800298 and later.
<4> Available in bypass controller software versions VST800400 and later.
6.3 Drive Alarms, Faults, and Errors
226
YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
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