AEC TD Floor Mount Dryers - Manual (Page 11)

OPERATING MANUAL - TD2 & TD4-25-100 DRYERS
Revision 8/31/01
Page 11
Standard PLC Electrics
Operating this unit is very simple. Once the dryer is
connected to the facility power supply, the unit can be started
by turning the disconnect located on the electrical panel
enclosure to the ON position and pressing the ON button on
the Control Panel Key Pad. To shut the dryer off, simply push
the OFF button on the Control Panel Key Pad and turn the
disconnect to the OFF position.
Setting the process air temperature is done using the Digital
Controller.
For a more detailed explanation, see the following sections.
Control Panel - Operating Display
Turn Power on at dryer using disconnect
1. POWER light indicates power to the unit is on.
Press ON button on key pad
2. Illuminated BLOWER light indicates Blower is on.
3. Flashing IN REGEN light indicates bed is in
Regeneration cycle.
4. Steady IN REGEN light means bed is in cooling cycle.
5. Illuminated REGEN HEATER light indicateS heater is
on.
Alarm Conditions:
6. Flashing PROCESS AIR TEMP. ALARM indicates an
over or under temp alarm.
Unit shuts down.
7. Steady PROCESS AIR TEMP. ALARM light indicates
unit has failed. Further diagnostics are required.
8. Flashing ALARM light indicates a safety override
condition has occurred. Dryer shuts down.
Digital Controller - Setting Process Air Temperature:
Press SET button - temperature set display will flash.
Press up arrow to increase temperature and down arrow to
decrease temperature.
Press SET again to enter the new temperature.
If the display flashes, the temperature is out of the control
range.
If the display shows 0000 the thermocouple is not connected
or is faulty.
START-UP PROCEDURE
XX XX
ALARM
PROCESS
HEATER ON
TEMP.
PROCESS AIR
ON OFF
POWER
LEFT
BED
RIGHT
BED
IN REGEN
IN REGEN
PROCESS
BLOWER ON
REGEN
HEATER ON
REGEN
HEATER ON
ALARM