American Dryer Corp MLG-460 manual Pendant Control Malfunctions, Pendant Electrical Components

E. PENDANT CONTROL MALFUNCTIONS

Introduction

There are four (4) electrical switches associated with the ML-460 Pendant assembly. These components are interfaced to TB1 of Main Electrical Enclosure through two (2) disconnects and two (2) junction boxes.

The Pendant Assembly is remote control for Loading or Unloading the dryer. The functions provided are:

•LOAD - LEVEL - UNLOAD

•TUMBLER (Basket) REVERSE

•TUMBLER (Basket) FORWARD

•EMERGENCY STOP (E-Stop)

The following information will provide a means to respond to “Pendant” malfunctions, and to verify ALL its electrical signals. Refer to the following dryer Pendant associated wiring diagrams for detailed assembly and wiring information.

•PENDANT ASSEMBLY DIAGRAM

•ANNUCIATOR, PENDANT, and UPPER RTD’S (Resistive Temperature Device) WIRING DIAGRAM.

1.Pendant Electrical Components

•Load - Level - Unload -A and B

•Tumbler (Basket) Reverse Switch - PB2

•Tumbler (Basket) Forward Switch -PB1

•EMERGENCY STOP (E-Stop) Switch - PB6

There are two (2) normally open electrical switches associated with this switch function, that are actuated by a three (3) position selector.

SEL A = LOAD

SEL B = UNLOAD

Once this switch turned to “LOAD”, the dryer’s front doors will open, and depending upon system configuration, will either tilt back or remain level.

•If the dryer was configured to Unload from the front: Any time this switch is turned to “UNLOAD,” he dryer’s front doors will open, and its tumbler (basket) will tilt to the front.

•If the dryer was configured to Unload from the rear: Anytime this switch turned to “UNLOAD,” nothing will happen. ALL unloading functions will be transferred to the rear Control Panel.

•TUMBLER (Basket) REVERSE “PENDANT” - PB2

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

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