Watlow Series 96 - Manual (Page 61)

Wa t l o w S e r i e s 9 6 A p p e n d i x ■ A . 2
• Cycle power to unit. If problem persists,
return unit to factory.
• Cycle power to unit.
• Cycle power to unit. If problem persists,
return unit to factory.
• Cycle power to unit. If problem persists,
return unit to factory.
• Module defective, replace or verify module
configuration.
• Return unit to factory.
• Cycle power to unit.
• Cycle power to unit.
• Recalibrate unit.
• Cycle power to unit. If problem persists,
return unit to factory.
• Cycle power to unit. If problem persists,
return unit to factory.
• Cycle power to unit. If problem persists,
return unit to factory.
• Cycle power to unit. If problem persists,
return unit to factory.
• There is a RAM malfunction.
• The EEPROM data is corrupted.
• There is a PROM malfunction.
• There is a logic hardware problem.
• Module error.
• Configuration error. Module in invalid
position.
• Module changed.
• New firmware is installed.
• Calibration data is corrupted.
• There is an analog-to-digital hardware
failure.
• There is an EEPROM hardware problem.
• It is the new unit’s first power up.
• There is an EEPROM hardware problem.
• [Er`4] [rAM]
• [Er`5] [EEcs]
• [Er`6] [roM]
• [Er`7] [HArd]
• [Er`8] [PLug]
• [Er`9] [cnFg]
• [Er10] [chng]
• [Er11] [SoFt]
• [Er12] [cAL`]
• [Er13] [Atod]
• [Er14] [EEhd]
• [Er15] [nEW]
• [Er16] [Addr]
Unit Errors (error number in top display,error message in bottom display)
• Configure output as an alarm.
• Check alarm set points.
• To clear the alarm, correct the alarm
condition; check to see if the alarm is latched.
• Check the alarm sides setting.
• Check the alarm type setting.
• Check the alarm logic for compatibility with
system peripherals and annunciators.
• Check the power limit setting.
• Check the operation mode.
• Check the alarm output function.
• Check the °C or °F setting.
• Check the calibration offset value; set it to a
lower level.
• Alarm output may be off.
• Alarm set points may be incorrect.
• Alarm may be silenced.
• Alarm sides may be incorrect.
• Controller may be in diagnostics mode.
• Alarm may be latched.
• Alarm set points may be incorrect.
• Alarm hysteresis may be incorrect.
• Input may be in error condition.
Alarms
• Alarm won’t occur.
• Alarm won’t clear.
• Check sensor connections.
• Check sensor connections and sensor wiring.
• Change the Sensor Type parameter to match
the sensor hardware.
• Change the Sensor Type parameter to match
the sensor hardware. Try Restore Factory
Calibration (Cal. 1 Menu).
• Verify that the temperature surrounding the
controller is 32 to 149°F (0 to 65°C).
• Check sensor function. The Open Loop Detect
parameter indicates it may be broken.
• Check the Calibration Offset parameter value;
set it to the correct value.
• Restore factory calibration. See pg. 6.22 for
selecting [`rSt] = [`yes].
• The sensor may be improperly wired.
• Sensor wiring may be reversed, shorted or
open.
• Input type setting may be for the wrong
sensor/may not be calibrated.
• Input type setting may be for the wrong
sensor/may not be calibrated.
• Ambient temperature may be too hot or too
cold.
• The open loop detect shows a broken sensor.
• The calibration offset parameter is set much
too high or low.
• Calibration may have been corrupted.
• Input is in error
condition.
[Err1] Underflow
[Err2] Under Sensor
[Err3] Over Sensor
[Err4] Overflow
Input Error (error number in top display, % LED lit, percent power in bottom)
Corrective Action Probable Cause(s) Indication