American Dryer Corp. ADS-464 II, Installation & Operator'S Manual

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4. Front Panel “ BLUE ” Light and “ RED ” Light “ON”
ADS-464 “ON” button does respond ...
a. PROBABLE CAUSES;
1) “ EMERGENCY STOP ” (E-Stop) BUTTONS 1, 2, and 3.
b. POSSIBLE SOLUTIONS;
1) Verify that ALL “ EMERGENCY STOP ” (E-Stop) buttons are pushed in.
• EMERGENCY STOP 1 - main enclosed door
• EMERGENCY STOP 2 - pendant control
• EMERGENCY STOP 3 - rear control panel (2-door models only)
• If ALL “ EMERGENCY STOP ” (E-Stop) buttons are “disengaged,” press “ON” located on
the main enclosure door.
• If “NO,” go to section #3 on page 46
Does the system “ GREEN ” “ON” light illuminate?
• If not, check the “ EMERGENCY STOP ” (E-Stop) and drying system “ON/OFF” circuits.
(Refer to ladder diagram.)
5. Front Panel “ BLUE ” (main panel) light, “ RED ” (sprinkler power) light, and “ GREEN ” (control
power) light “ON ”
The system has one or more of the following symptoms;
• OPERATOR INTERFACE TERMINAL - no display or displays “LINE FAULT” message
• PROGRAMMABLE LOGIC CONTROLLER (PLC) - no indicator lights “ON”
• CONVENIENCE OUTLET - no power
• HI-LIMIT CONTROLLERS (HLS1 and HLS2) - no display
a. PROBABLE CAUSES;
1) Fuse 7 -- PLC (Programmable Logic Controller) power
Fuse 8 -- 24 volt DC power
Fuse 9 -- convenience outlet
Fuse 10 - hi-limit controller power
2) Malfunctioning PLC (Programmable Logic Controller).