Troubleshooting and Pen Alignment of Recorder with Display

8.5.7 Troubleshooting Relay Output

Procedure

Table 8-11explains what to do if the displayed output does not agree with the single relay or dual relay control output.

Table 8-11 Troubleshooting Relay Output Failure Symptoms

Step

What to do

How to do it or

 

 

where to find the instructions

 

 

 

1

Be sure the recorder is configured for

Refer to Section 4 – Configuration, Startup, and

 

relay output.

Operation of Recorder with Display.

 

 

 

2

Be sure all the recorder and control

Refer to Section 4 – Configuration, Startup, and

 

related data is correct.

Operation of Recorder with Display.

 

 

 

3

Check that the applicable output relay

Put the recorder into manual mode and adjust

 

actuates properly. If it does, go to step 4.

the output manually to raise or lower the PV

 

 

around the setpoint. Listen for the click of the

 

 

relay as the PV moves in either direction.

 

 

Observe OUT 1 or OUT 2 value on the front

 

 

display.

 

 

 

4

Check the field wiring.

Refer to Section 2 – Installation.

 

 

 

5

Replace the relay.

Refer to Section 9 – Replacing Hardware

 

 

Assemblies.

 

 

 

6

Replace the printed circuit assembly for

Refer to the replacement procedure in Section 9

 

the pen channel having the problem.

– Replacing Hardware Assemblies.

 

 

 

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Honeywell DR4300 manual Troubleshooting Relay Output Failure Symptoms, Refer to Replacing Hardware