Watlow PC1X-F20, Руководство пользователя

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All Units
• If the controller has heater diagnostics installed, a
shorted SCR will cause an error and shut down the
remaining good SCRs. Return the unit to the factory
for repair.
If the controller does not have heater diagnostics
installed, if output power (%)
[`Out] reads [``)0]
and there is power to the heater, the SCR is shorted;
return the unit to the factory for repair.
• With input signal set for 0% power, check output
power display; if it is not [``)0] , check calibration.
With input signal set for 100% power, check output
power display; if it is not
[10)0] , check calibration.
• Return the unit to the factory for repair.
• Shorted SCR.
• Input out of calibration.
• Internal malfunction.
Full or Partial
Uncontrollable
Heat
• Insure that line power is connected and is on at the
appropriate voltage.
• Return the unit to the factory for repair.
• Line input voltage low. Partial Heat
• Check the load or load wire; connect if necessary.
• Check the fuses and replace any if necessary.
• See page 6.5 to set power control algorithm.
• Check the input wiring and ensure that it is
connected properly. (See pages 3.2-3.3 for wiring.)
Input can be monitored with
[In``] parameter in
the Display Loop. With keyboard control, test by
increasing output by % and checking for heat. Be
careful to not over heat anything.
• Insure that line power is connected and is on at the
appropriate voltage.
• Return the unit to the factory for repair.
• Heater or load wire is not connected.
• Blown fuse.
•
[`set] > [algo] is set to [`OFF] .
• Incorrect input wiring.
• Line not connected or off, or the voltage
is too low. Controller will indicate [`alr]
(Line Loss Alarm) [line] .
• Internal malfunction (core PCB, open
SCR, gate drive inoperative, core to
power supply and LM connection, power
supply and line monitor PCB not seated
properly on SCR).
No Heat
• Record error and address the cause of the error.
• Record error and cycle controller power. If the
problem persists, contact factory for assistance.
• Cycle controller power. If the problem persists,
contact factory for assistance or return the unit to
the factory for repair.
• Record alarm and address the cause of the alarm.
• Record alarm and cycle controller power. If the
problem persists, contact the factory for assistance.
• System error.
• System error (no problem found).
• System error not displayed.
• Alarm.
• Alarm (no problem found).
Display
Locked
• Insure that the unit is plugged in and the power is
on.
• Check the display to make sure it is flush with plastic.
• Pull off the display and check the connection pins;
repair or replace if necessary.
• Return the unit to the factory for repair.
• Controller power not present.
• Display not seated properly.
• Bent or broken pins.
• Faulty (malfunctioning) unit.
No LED
Display
Corrective Action Probable Cause Indication
A . 2
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Wa t l o w P o w e r S e r i e s A p p e n d i x
Troubleshooting