n
Minor Faults and Alarms
Refer to Table 5.6 for an overview of possible alarm 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 an alarm, the ALM indicator LED blinks and the alarm code display flashes. Most alarms trigger a
digital output programmed for alarm output (H2-oo = 10). A fault (not an alarm) is present if the ALM LED lights without
blinking. Refer to Faults on page 204 for information on fault codes.
Table 5.6 Minor Fault and Alarm Displays
HOA
Keypad
Display
Name
Minor Fault
Output
(H2-oo = 10)
Page
bAT HOA Keypad Battery Voltage Low YES 207
bb Drive Baseblock No output 220
bUS Option Card Communications Error YES 220
CALL
Serial Communication Transmission
Error
YES 220
CE
MEMOBUS/Modbus Communication
Error
YES 220
CrST Cannot Reset YES 221
dnE Drive Disabled YES 221
EF Run Command Input Error YES 221
EF0 Option Card External Fault YES 221
EF1 to
EF7
External Fault
(input terminal S1 to S7)
YES 222
FAn Internal Fan Fault YES 209
FbH Excessive PI Feedback YES 222
FbL PI Feedback Loss YES 222
Fn1 External Fan Fault YES 210
inTLK
<1>
Interlock Open No output 223
LT-1 Cooling Fan Maintenance Time
No output
<2>
223
HOA
Keypad
Display
Name
Minor Fault
Output
(H2-oo = 10)
Page
LT-2 Capacitor Maintenance Time
No output
<2>
223
LT-3
Soft Charge Bypass Relay Maintenance
Time
No output
<2>
223
oH Heatsink Overheat YES 223
oH2 Drive Overheat YES 224
oH3 Motor Overheat YES 224
oL3 Overtorque 1 YES 224
ov Overvoltage YES 224
PASS
MEMOBUS/Modbus Test Mode
Complete
No output 225
SAFE Customer Safety No output 225
SE MEMOBUS/Modbus Test Mode Fault YES 225
TdE Thermistor Disconnect YES 225
TIM Time Not Set YES 217
UL3 Undertorque 1 YES 225
UL6 Undertorque 6 YES 225
Uv Undervoltage YES 225
voF Output Voltage Detection Fault YES 226
WrUn Waiting for Run YES 226
<1> ALM LED will not blink.
<2>
Output when H2-oo = 2F.
n
Operation Errors
Table 5.7 Operation Error Displays
HOA
Keypad
Display
Name Page
oPE01 Drive Unit Setting Error 227
oPE02 Parameter Setting Range Error 227
oPE03 Multi-Function Input Setting Error 227
oPE05 Run Command Selection Error 228
oPE07 Multi-Function Analog Input Selection Error 228
oPE08 Parameter Selection Error 228
oPE09 PI Control Selection Error 229
HOA
Keypad
Display
Name Page
oPE10 V/f Data Setting Error 229
oPE11 Carrier Frequency Setting Error 229
oPE16 Energy Saving Constants Error 229
oPE27 BP Program Error 230
oPE28 Sequence Timer Error 230
oPE29 Baud Rate Setting Error 230
5.3 Drive Alarms, Faults, and Errors
YASKAWA ELECTRIC TOEP C710616 45F YASKAWA AC Drive – Z1000 User Manual
205
5
Troubleshooting
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