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B. TUMBLER SECTION ELECTRICAL MALFUNCTIONS
INTRODUCTION
There are a number of electrical components associated with the ADS-464 tumbler section. These components
are all interfaced to the tumbler junction box, and connected to the main electrical enclosure through a dis-
connectable cable.
The “tumbler junction box” is located on the left side of the tumbler, in the same area as the left drum motor. The
title of the wiring for the tumbler section is “ADS-464 Tumbler Electrical Junction Box Wiring Diagram.” The
tumbler section electrical components provide:
- Front and rear door position information
- Drum rotation information
- Rear panel controls for unloading
- EMERGENCY STOP (E-STOP)
The “tumbler junction box” is located on the left side of the tumbler section, in the same area as the left drum
motor. The title of the wiring diagram for the tumbler section is “ADS-464 Tumbler Electrical Junction Box
Wiring Diagram.” The tumbler section electrical components provide:
The following information will provide a means to respond to fault messages associated with the tumbler section,
and verify all the electrical signals associated with it.
Refer to the ADS-464 Tumbler Junction Box Wiring Diagram for detailed wiring information.
1.0 Tumbler Section Electrical Components
1. Load Door Switch - DS1
The load door switch is located on the left side of the ADS-464 front doors and compromises of four (4)
parts: head, arm, body and cord grip device. The head is a rotating type, with a spring arm attached for
switch actuation. The body contains a double pole, double throw, normally open switch. DS1 has two
(2) electrical functions, A and B.
2. Unload Door Switch - DS2
The unload door switch is located on the right side of the ADS-464 rear doors and compromises of
four (4) parts: Head, Arm, Body, Cord Grip device. The head is rotating type, with a spring arm
attached for switch actuation. The body contains a double pole, double throw, switch. DS2 has two (2)
electrical functions, A and B.
“A” provides rear door position signal to the PLC (Programmable Logic Controller).
“B” is a rear interlock to the burner controller circuit.
