51
4. Front Panel
“
BLUE
” Light and “
RED
” Light “ON”
ADS-464 “ON” button does respond ...
a. PROBABLE CAUSES;
1a)
EMERGENCY STOP
(E-STOP) BUTTONS 1, 2, and 3.
b. POSSIBLE SOLUTIONS;
1b) Verify that
ALL EMERGENCY STOP
(E-Stop) buttons are pushed in.
•
EMERGENCY STOP 1
- main enclosed door
•
EMERGENCY STOP 2
- pendent 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 47
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;
1a) Fuse 7 -- PLC (Programmable Logic Controller) power
Fuse 8 -- 24 volt DC power
Fuse 9 -- convenience outlet
Fuse 10 - hi-limit controller power
2a) Malfunctioning PLC (Programmable Logic Controller).