LCD Display Message  Data 
(Hex) 
Explanation 
CURRENT DETECT ERROR
(PRESS CLEAR) 
××1A  Output current detection circuit error 
OPTION PCB ERROR 
(PRESS CLEAR) 
××1B  Option PCB error 
OPTION ROM ERROR  ××1C  Option ROM error 
LOW CURRENT TRIP 
(PRESS CLEAR) 
××1D  Low current 
UNDERVOLTAGE TRIP 
(PRESS CLEAR) 
××1E  Main circuit undervoltage 
  ××1F  Unused 
OVERTORQUE TRIP 
(PRESS CLEAR) 
××20  Overtorque 
EARTH FAULT (SOFT) 
(PRESS CLEAR) 
××21  Earth fault (software) 
EARTH FAULT (HARD) 
(PRESS CLEAR) 
××22  Earth fault (hardware) 
OPEN FUSE TRIP 
(PRESS CLEAR) 
××23  Open fuse 
DBR OVERCURRENT TRIP
(PRESS CLEAR) 
××24  Dynamic braking resistor overcurrent 
DC OVERCURRENT (ACC)
(PRESS CLEAR) 
××25  Overcurrent in DC section during acceleration 
DC OVERCURRENT (DEC)
(PRESS CLEAR) 
××26  Overcurrent in DC section during deceleration 
DC OVERCURRENT (RUN)
(PRESS CLEAR) 
××27  Overcurrent in DC section during constant-speed run 
AUTO-TUNING ERROR 
(PRESS CLEAR) 
××28  Auto-tuning error 
INV TYPEFORM ERROR 
(PRESS READ/WRITE) 
××29  Inverter typeform error 
 
 
 
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