American Dryer Corp MLG-460 manual Verify Pendant Electrical Signals

•TUMBLER (Basket) FORWARD “PENDANT” - PB1

This push button comprises of one normally open switch, and is mechanically interlocked with the Tumbler (Basket) Reverse Push button.

•EMERGENCY STOP ((E-Stop) “PENDANT” - PB6

This push button switch is normally open device and its function is to shut down the control voltage to the dryer in the event it is pressed.

NOTE: It will not effect the sprinkler circuit power.

2.Verify Pendant Electrical Signals

ALL the pendant control signals are interfaced to the Main Electrical Panel’s PLC (Programmable Logic Controller) except for EMERGENCY STOP (E-Stop).

•Load - Level - Unload -A and B

•Tumbler (Basket) Reverse Switch - PB2

•Tumbler (Basket) Forward Switch -PB1

•EMERGENCY STOP (E-Stop) Switch - PB6

For a quick check of the wiring of SEL 1 and 2 to the PLC (Programmable Logic Controller) perform the following test with the control voltage “ON” (“GREEN” Button);

•Turn the selector switch to “LOAD.”

•Does PLC (Programmable Logic Controller) input L.E.D. (light emitting diode) #15 light?

•Turn the selector switch to “UNLOAD.”

•Does PLC (Programmable Logic Controller) input L.E.D. (light emitting diode) #16 light?

•Turn the selector switch to “LEVEL.”

•Are both PLC (Programmable Logic Controller) (input #15 and input #16) “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 on page 89.

•Tumbler (Basket) Reverse Switch PB2

For a quick check of the wiring of PB2 to the PLC (Programmable Logic Controller) perform the following test with control voltage “ON”. (“GREEN” Button)

•Press the REVERSE push-button.

•Does PLC (Programmable Logic Controller) input L.E.D. (light emitting diode) #18 light?

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