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3. TROUBLESHOOTING GUIDE
(1) Drive system (5/5)
Error code
on display
Error description Problem Resetting Error code conditions
LED
code
Page
602
Load-handling data reception error
(Communication wire broken)
(The contactor does not operate when the
load-handling data has no errors when
the key switch is turned ON.)
The truck can be driven normally.
Automatically resets when
the input returns to normal.
63 56
603
EPS (power steering) data reception
error (Communication wire broken)
(The contactor does not operate when
the power steering data has no errors
when the key switch is turned ON.)
The truck can be driven normally.
Automatically resets when
the input returns to normal.
64 56
- Abnormal battery voltage detected
The travel, load-handling and PS (power
steering) systems are inoperative.
Turn the key switch OFF.
48 V trucks: More than 63 V
72 V trucks: More than 94 V
08 56
-
Load short circuit (Motor interphase
short-circuited)
The truck won’t travel. Turn the key switch OFF. 22 57
-
EEPROM SUM error
The truck can be driven normally.
(The parameters used for the drive
adjustments are the default settings.)
Turn the key switch OFF.
82
57
EEPROM ACK error 83
-
Overcurrent
(Hard OCL detected)
The truck won’t travel. Turn the key switch OFF. 91 57
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