Watlow Series 935B Manual de usuario descargar pdf (Pagina 10)

Respond to a simple error

Display Probable Cause Recommended Action

Reversed thermo- Change the sensor

couple connection leads on Terminals

+ to –. 1 and 2.

Sensor type Go to {`In} prompt, check

mismatch selection (see p. 22), or check

or open RTD. RTD, replace as necessary.

Sensor type Go to {`In} prompt,

mismatch. check selection

(see p. 22).

Open Thermocouple, Check the sensor,

bad connection, or replace as

broken wire. necessary.

Electrical noise. Cycle power to system. See if error

clears. Check system for electrical

interference.

Control is inoperable. Check for line voltage at

terminals 7 and 8.

RDY

SET

• Simply correct the cause.

• Errors are non-latching

and self-clearing.

• For advanced error and

troubleshooting

information, go to p. 39.

If You See An Error Code:

1. Be aware that most errors are input (sensor) related.

2. Read the table below and follow its recommendations.

Table 2 - Error messages and recommended action

[`Er1]

[`Er2]

[`Er3]

[`Er4]

[`Er5]

[````]

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Watlow Series 935B Manual de usuario Pagina 10