Watlow MINICHEF 2000 Instrukcja Użytkownika Pobierz pdf (Strona 35)

Troubleshooting Chart

34 ■ Watlow MINIC HEF 2000 Hardware & Software Setup Guide

MINICHEF

™

2000 Troubleshooting Chart

Errors (Messages 1-14 alternate on display with normal display.)*

*Note: For definitions of errors, see pages 56 - 57.

• Confirm temperature sensor com-

patibility. Compare controller part

number and specification to the cho-

sen sensor.

• Refer to the controller part number

on the sticker label, or view the con-

troller part number by accessing the

WatHelp Diagnostics Function.

• For controllers requiring thermocou-

ple sensors, confirm that the

[tc```] parameter is set to the

proper thermocouple curve.

• For controllers requiring RTD sen-

sors, confirm that the [rtd``]

parameter is set to the proper RTD

curve.

• Refer to sensor wiring instructions.

• Refer to controller specifications.

• A/D Underflow Error has occurred

on channel 1.

• Temperature sensor for channel 1

is incompatible with controller.

• Temperature sensor lead wires for

channel 1 are improperly terminat-

ed (lead wires are reversed).

• Channel 1 measures a condition

below the controller temperature

range.

[Err`5] appears on the

display

• Return controller to factory.• Calibration Error.

Controller is out of calibration.

[Err`4] appears on the

display

• Cycle the power to the controller: off-

on. If [Err`3] reappears on the

display, return controller to factory.

• Controller RAM memory malfunc-

tion.

[Err`3] appears on the

display

• Cycle the power to the controller: off-

on. If [Err`2] reappears on the

display, return controller to factory.

• Controller EEPROM component

malfunction (checksum error).

[Err`2] appears on the

display

• Cycle the power to the controller: off-

on. If [Err`1] reappears on the

display, return controller to factory.

• Controller EPROM component mal-

function (checksum error).

[Err`1] appears on the

display

• Check the controller mating connec-

tors and system harness assemblies

for proper installation.

• Cycle the power to the controller:

off-on.

• Check power supply, fuses, switches,

breakers, connectors, wiring for

proper connection.

• System power switch is off.

• System fuse is blown.

• System circuit breaker is tripped.

• System high-limit device is latched.

• System wiring has open circuitry.

• Power supplied to controller does

not meet specification.

Main display is blank.

No indicator lights.

Possible SolutionsPossible CausesSymptom/Indication

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 70 71

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