Kawasaki D Series Controller MPVDCONTV113E-3 - Manual (Page 39)

TROUBLESHOOTING
D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
1-36 August 9, 2005
Ka a a w s k
ERROR CODE D1508 24VDC power source is too low.
24 VDC to the power sequence board has dropped to +21.6 VDC or less.
Mother Board
1KP board
1KB board 1KX board
EPLD
24 VDC
monitor
AVR for
control power
Main
disconnect
Primary
power
Control
power
210 VAC
DC error
signal
Local
bus
F1 T1 F3
1KQ/1NQ board
Transformer
Circuit
breaker
Main causes include:
1. Defective AVR for control power supply.
2. Defective 1KP board.
3. Defective 1KQ/1NQ board.
4. Short circuit in the motor power on circuitry, the EMERGENCY STOP switch, or axis
restriction limit switch circuits.
5. Short in machine valve and sensor circuits.
⇒
Check the power supply, machine valve, and the sensor circuits for short circuits.
⇒
Ensure the 24 VDC load does not exceed the power supply capacity.
⇒
Check the AVR, the 1KP power sequence board, and the 1KQ/1NQ relay board and
replace as necessary.
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