American Dryer Corp. ADS-464 II User Manual

Page 62

3b) Wiring from the EMERGENCY STOP (E-Stop) button to the main electrical enclosure is faulty or

incorrect.

Check REAR PANEL CONTROLS WIRING DIAGRAM

Check TUMBLER JUNCTION BOX WIRING DIAGRAM

Refer to section #3 on page 57 and retest

Drum Forward and Reverse Function

c. PROBABLE CAUSES;

1) Rear panel disconnect plug

2) Defective switches

3) Wiring back to the main electrical enclosure

d. POSSIBLE SOLUTIONS;

1) If either the Drum forward or reverse functions (rear) do not respond

Verify that the rear panel controls disconnect plug is indeed connected. This disconnect plug

allows for the removal of the rear control panel for dryer servicing

2) Defective Forward and Reverse Switch

Shut power off at the main breaker and remove the rear panel and check switches using an

OHM meter; replace if defective

Retest

3) Wiring Back to Main Electrical Enclosure

With the control voltage ON front panel green button

Select 1 on the O UNLOAD 1 switch located on the rear controls panel

Have someone PRESS either the forward or reverse buttons while you watch the input L.E.D.s

(light emitting diodes) of the programmable controller. Do the associated L.E.D.s light?

PLC PIN 20 = DRUM FWD., REAR PANEL

PLC PIN 21 = DRUM REV., REAR PANEL

If YES, refer to section #3a

If NO, refer to section #3b