American Dryer Corp. ADS-464 II User Manual

Page 68

c. Lint Drawer Proximity Switches

The Lint Drawer Proximity Switches are located on the left side of the ADS-464 base, and is comprised

of six (6) parts: Junction Box, two (2) proximity switches, and three (3) cord grip switches. The switches

sense a magnet installed on the lint drawer that verify that ALL safeties are met to the Burner Controller

and also signal the PLC that enables the ADS-464 to begin drying cycle.

NOTE: Front and Rear Drawers are not interchangeable.

B is used as an electrical interlock to the PLCs 110 VAC output power

d. Lint Chamber Pressure Switch -- PS3

The Lint Chamber Pressure Sensing Switch is located on the left rear side of the ADS-464 base. It is

an adjustable pressure switch, which incorporate a single-pole-single-throw (SPST) switch. PS3s electrical

function is to close its switch when the present pressure in the lint chamber is sufficient. This switch is

wired in series with other switches to form an interlock to the Burner Control Module.

2.0 Tumbler Tilt Problems LEVEL FAULT

A LEVEL FAULT message is generated by the incorrect state of either the FRONT or REAR sensor

switches. The following information will address the LEVEL signals, since they are associated with the

Base Electrical Junction Box.

a. PROBABLE CAUSES;

1) WIRING BACK TO THE PLC (Programmable Logic Controller)

LS1-B=FRONT DOWN SWITCH

LS2-B=REAR DOWN SWITCH

b. PROBABLE SOLUTIONS;

1) For a quick check of the FRONT DOWN and REAR DOWN signals to the PLC (Programmable

Logic Controller) perform the following:

FRONT DOWN signal test procedure 1a

REAR DOWN signal test procedure 1b

1a) Place the ADS-464 in the LOAD position; Front Up

Actuate the Front Down switch by hand

Have someone verify that PLC (Programmable Logic Controller) input #11 lights when the

switch actuator is down, and is OFF when the actuator is up.

Does L.E.D. #11 come ON when the switch is down?

If YES, wiring is okay