Watlow Series F4P - Manual (Page 13)

Wa t l o w S e r i e s F 4 P O p e r a t i n g f r o m t h e F r o n t P a n e l ■ 2 . 7
• Repair heating/cooling circuits.
• Check circuit breakers, switches,
heater elements, compressor.
• Heater/cooling non-functional.
• Replace sensor. • Sensor shorted.
• Replace relay. • Output relay open or shorted.
• Place sensor near source. • Sensor not properly located
• Check all wiring and components.
• Turn the controller off, then on again.
Open Loop Detect
(Upper Display shows error
code for input 1 only. Lower
Display shows additional
errors.
Upper:
[oPLP`]
Lower: Open Loop
• Return controller to factory for repair. • Controller has failed. • Flash memory Failed.
Return controller to the
Factory.
• Return controller to factory for repair. • Controller has failed. • RAM Test Failed!
Return controller to the
Factory.
• Turn the controller off, then on again.
If problem persists, power line filter is
required.
• Power line noise has corrupted memory. • Checksum Error!
Parameter memory.
• Checksum Error!
Unit Config memory
• Checksum Error!
Profile memory.
• Normal operation following flash up-
date of firmware.
• Controller firmware has been updated. • Firmware change.
Parameters are initializing.
• Return controller to factory for repair. • Power was interrupted during a flash
update or there is a component failure.
• Flash Memory Failed!
Return controller to the
Factory.
• Return controller to factory for repair. • Component failure. • RAM Test Failed!
Return controller to the
Factory.
• Should not appear in the field. Call
the factory if you get this message.
• Controller powered up for the first time. • First power-up.
Parameters are initializing.
• This is normal upon module change. • Input or output module was changed. • Module change.
All parameters are initializing.
Corrective Action Probable Cause(s) Indication