American Dryer Corp. MLG-460 - Manual (Page 93)

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• Releases the REVERSE Push-button.
• Does PLC (Programmable Logic Controller) input L.E.D. (light emitting diode) #18 go “OFF”?
• If the answers to these question are “YES”, wiring to the PLC (Programmable Logic Controller) is
correct.
If any answer to these questions is “NO”, refer to Probable Causes paragraph below
• Tumbler (Basket) Forward Switch - PB1
For quick check of the wiring of PB1 to the PLC (Programmable Logic Controller) perform the following
test with the control voltage “ON”. (“GREEN” Button)
• Press the FORWARD Push-button.
• Does PLC (Programmable Logic Controller) input L.E.D. (light emitting diode) #17 light?
• Releases the REVERSE Push-button.
• Does PLC (Programmable Logic Controller) input L.E.D. (light emitting diode) #17 go “OFF”?
• If the answer to these question are “YES,” wiring to the PLC (Programmable Logic Controller) is correct.
If any answer to these questions is “NO,” refer to Probable Causes paragraph below:
a) PROBABLE CAUSES;
1a) Fuse #4 on Main Electrical Panel
2a) Faulty Switches
3a) Wiring back to the PLC (Programmable Logic Controller)
b) POSSIBLE SOLUTIONS;
1b) Check fuse blown indicator on Fuse #4; replace fuse, if necessary and retest.
2b) Check switches using an OHM meter; replace if necessary, and retest.
3b) Refer to ML-460 Pendant associated wiring diagrams for detailed assembly and wiring information.
Check ALL circuits back to PLC (Programmable Logic Controller).
• ML-460 PENDANT ASSEMBLY DIAGRAM
• ML-460 ANNUCIATOR, PENDANT, and UPPER RTD’S (Resistive Temperature Device’s)
WIRING DIAGRAM