Refer to minor, For a list of alarm codes, Minor faults and alarms – Yaskawa AC Drive P1000 Bypass Technical Manual User Manual
Page 175: Operation errors, Auto-tuning errors

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Minor Faults and Alarms
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. A fault (not an alarm) is
present if the ALM LED lights without blinking.
for information on fault codes.
Table 6.5 Minor Fault and Alarm Displays
HOA
Keypad
Display
Name
Page
AL02
BAS Interlock Open
AL03
Smoke Purge in Bypass
AL04
Smoke Purge in Drive
AL13
Loss of Load
AL14
Serial Communications Fault
bAT
HOA Keypad Battery Voltage Low
bb
Drive Baseblock
bUS
Option Card Communications Error
CE
MEMOBUS/Modbus Communication Error
CrST
Cannot Reset
EF
Run Command Input Error
EF0
Option Card External Fault
FAn
Internal Fan Fault
FbH
Excessive PI Feedback
FbL
PI Feedback Loss
Fn1
External Fan Fault
inTLK
<1>
Interlock Open
LT-1
Cooling Fan Maintenance Time
HOA
Keypad
Display
Name
Page
LT-2
Capacitor Maintenance Time
LT-3
Soft Charge Bypass Relay Maintenance Time
oH
Heatsink Overheat
oH2
Drive Overheat
oH3
Motor Overheat
oL3
Overtorque 1
ov
Overvoltage
PASS
MEMOBUS/Modbus Test Mode Complete
SAFE
Customer Safety
SE
MEMOBUS/Modbus Test Mode Fault
TdE
Thermistor Disconnect
TIM
Time Not Set
UL3
Undertorque 1
UL6
Undertorque 6
Uv
Undervoltage
voF
Output Voltage Detection Fault
WrUn
Waiting for Run
<1> ALM LED will not blink.
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Operation Errors
Table 6.6 Operation Error Displays
HOA
Keypad
Display
Name
Page
oPE01
Drive Unit Setting Error
oPE02
Parameter Setting Range Error
oPE03
Multi-Function Input Setting Error
oPE05
Run Command Selection Error
oPE07
Multi-Function Analog Input Selection Error
HOA
Keypad
Display
Name
Page
oPE09
PI Control Selection Error
oPE10
V/f Data Setting Error
oPE11
Carrier Frequency Setting Error
oPE28
Sequence Timer Error
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Auto-Tuning Errors
Table 6.7 Auto-Tuning Error Displays
HOA
Keypad
Display
Name
Page
End3
Rated Current Setting Alarm
End4
Adjusted Slip Value Fell Below Lower Limit
End5
Resistance Between Lines Error
End7
No-Load Current Alarm
Er-01
Motor Data Error
Er-02
Alarm
HOA
Keypad
Display
Name
Page
Er-03
OFF Button Input
Er-04
Line-to-Line Resistance Error
Er-05
No-Load Current Error
Er-08
Rated Slip Error
Er-09
Acceleration Error
Er-12
Current Detection Error
6.3 Drive Alarms, Faults, and Errors
YASKAWA SIEP YAIP1B 01A YASKAWA AC Drive – P1000 Bypass Technical Manual
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Diagnostics & Troubleshooting