JUKI LK-1900AN Engineer's Manual page 81

4) LED3 for SDC board error check
No. of LED3
flashes
Turn on Nil
1 Main shaft motor lock
2 Error in phase Z
3 Error in phases A and B
4 Motor position sensor error
5 IPM error
6 Undervoltage
7 Motor reverse rotation
8 Overvoltage
9 Power interruption
10 Not used
11 +85V power system error
12 +33V power system error
13 Overheating
14 Not used
15 Communication error
Error description
Display of op-
eration panel
Dimly turn on in ordinary state
E007 Failure in revolving for 2 seconds
E303 Failure in phase Z detection
About 1.5 turns
E730 Failure in phases A and B detection
About 0.5 turns
E731 Logical error in U, V, W
E901 Error output generation from IPM
E813 Source voltage -20% or more
E733 Irregular motor revolutions
E811 Source voltage +20% or less
Display disabled Power interruption of 40 msec or more
E903 SDC board fuse F1 blow-off
E904 SDC board fuse F2 blow-off
E905 Radiator panel of SDC board heated at
85℃ or more
E916 Failure in communication with the MAIN
board
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Remarks