Installation Manual

8-18 Troubleshooting

50. Locate J18 on the XY Servo Interface PWA.

51. With the XY Servo DC Power Cable connected to the Main Interface PWA, measure VDC at Pin 1

(connect ground to Pin 4).

52. Is the reading ≥4 VDC?

XY Servo DC Power Cable (P/N 06-4530-00) has

failed. See

Parts Replacement section.

LED on the XY Servo Interface PWA (P/N 60-1211-00) has failed. See

Parts

Replacement

section.

53. Switch the Main Circuit Breaker to the OFF (0) position.

54. Check continuity of the fuses on the Main Interface PWA.

55. Do the fuses have continuity?

Replace fuse. See Parts Replacement section.

Then go back to Step 21.

Go to Step 56

56. Verify the DC Power Cable (P/N 193326) is securely connected between the Computer Interface

PWA Power Terminal and J2 labeled DC POWER IN on the Main Interface PWA.

57. Switch the Main Circuit Breaker to the

ON (I) position.

58. Locate the power LEDs on the Main Interface PWA.

59. Are the green +5V, +12V, -12V, and A+5V LEDs illuminated?

Go to Step 60

Go to Step 21

60. Measure VDC of DC Power Cable (P/N 193326) at J2 on Main Interface PWA (see Table 8-4).

Table 8-4 Cable P/N 193326 Connections

Pin Number Wire Color VDC

2Red

+5V

3 Orange

+12V

4White

-12V

5 Black ground

Yes