4.Front Panel “Blue” Light and “Red” Light “ON”
a.PROBABLE CAUSES;
1)“EMERGENCY STOP” (E-Stop) BUTTONS 1, 2, and 3.
b.POSSIBLE SOLUTIONS;
1)Verify that ALL “EMERGENCY STOP”
•EMERGENCY STOP 1 - main enclosed door
•EMERGENCY STOP 2 - pendant control
•EMERGENCY STOP 3 - rear control panel
•If ALL “EMERGENCY STOP”
•If “NO,” go to section 3 on page 46
Does the system “green” “ON” light illuminate?
•If not, check the “EMERGENCY STOP”
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
•
a.PROBABLE CAUSES;
1)Fuse 7
Fuse 9
2)Malfunctioning PLC (Programmable Logic Controller).
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