Kawasaki D Series Controller MPVDCONTV113E-3 - Manual (Page 38)

TROUBLESHOOTING
1-35 August 9, 2005
D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
Ka a a w s k
ERROR CODE D1507 AC primary power OFF.
This error occurs when there is an instantaneous decrease in the primary power to the
AVR for control power supply (130–145 VAC or less for 20–30 msec).
Mother Board
1KP board
1KB board 1KX board
EPLD
AVR
output
cut
AVR for
control power
Main
disconnect Primary
power
Control
power
210 VAC
AC error
signal
REMOTE
Local
bus
F1 T1 F3
1KQ/1NQ board
Transformer
Circuit
breaker
Main causes include:
1. The primary power is below the specified rating, or an instantaneous power decrease
occurred.
2. The non-fuseable breaker (NFB) F1 for the control power supply is turned OFF or
tripped due to a short-circuit.
3. An instantaneous decrease in the 210 VAC supply to AVR for the control power
supply.
4. Circuit breaker F3 is OFF or tripped due to a short circuit.
5. Defective AVR.
6. Defect in the primary power supply.
7. Defective 1KP board.
8. Defective 1KQ/1NQ board.
⇒
It is normal for this error to occur when NFB F1 is set OFF and back ON.
⇒
Check power supply circuit through NFB F1 and repair as necessary.
⇒
Check power supply circuit to the AVR through the circuit breaker F3 and repair as
necessary.
⇒
Confirm that primary power is supplied according to specifications.
⇒
Replace the 1KP board.
⇒
Replace the 1KQ/1NQ board.
⇒
Replace the AVR.
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