Table 7-5 Troubleshooting Power Failure Symptoms; Table 7-6 Troubleshooting Alarm Relay Output Failure - Honeywell UDC2300 Product Manual

Procedure #1
Table 7-5 explains how to troubleshoot power failure symptoms.

Table 7-5 Troubleshooting Power Failure Symptoms

Step
Check the AC line voltage.
1
2 Make sure the chassis plugs into
the rear of the case properly.
Check the system for Brown-outs,
3
heavy load switching, etc., and
conformance to installation
instructions.
Change Main board.
4
Procedure #2
Table 7-6 explains how to troubleshoot Alarm Relay Output failure.

Table 7-6 Troubleshooting Alarm Relay Output Failure

Step
1 Check the alarm configuration data. If
it is correct, check the field wiring.
Check that the applicable alarm relay
2
actuates properly depending on what
you have set at prompt AxSxTYPE.
If it does, check the field wiring.
Check the contacts.
3
Change Main board.
4
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What to do
What to do
UDC2300 Indicator Product Manual
How to do it
Use a voltmeter to measure the AC voltage across
terminals L1 and L2 on the rear terminal panel of
the indicator.
Check the earth ground connection.
Withdraw the chassis and visually inspect the
indicator board and the inside of the case.
Refer to Section 2 - Installation.
Installation instructions supplied with new board.
How to do it
Reconfigure if necessary.
Refer to Section 4 - Configuration for details.
If the alarm type is set for PV vary the input to
raise and lower the PV around the alarm
setpoint. Listen for a click from the relay as the
PV moves in either direction and note that the
proper ALM1 or ALM2 is lit.
Make sure the NO or NC contact wiring is
correct.
Refer to Section 2 - Installation for relay jumper
placement and relay contact information.
Installation instructions supplied with new board.
Troubleshooting/Service
57