Short Circuits; Troubleshooting Opens And Shorts - Rain Bird ESP-MC Serie Manual De Operación

Rain Bird RASTER

Short Circuits

When the RASTER TM shows a "SHORT" test result, it
indicates an unintended re-routing of the current
flow somewhere between the controller and the
valve.
These are some of the most common causes of
short circuits:
• A shorted valve solenoid
• Nicked or "skinned" field wires
• Loose or corroded wire connections on the
controller's terminal strip or at the valve solenoid
• A malfunctioning component on the controller's
internal circuit board.
12
(Rapid Station Test Routine),
TM
continued

Troubleshooting Opens and Shorts

Use the following procedure to troubleshoot any
valve identified as "OPEN" or "SHORT."
1. Make sure the problem valve's station wires are
securely connected on the controller's terminal
strip.
2. If the wires were securely connected, move the
problem station's wires to a station that passed
the RASTER TM and re-start the test.
3. If the "OPEN" or "SHORT" moves to the new
station, check the problem valve's solenoid and
field wiring.
4. If the "OPEN" or "SHORT" reoccurs on the
original station, the controller's internal circuitry
may need service.