Table 7-7 Troubleshooting Alarm Relay Output Failure; Table 7-8 Troubleshooting A Keyboard Failure - Honeywell UDC2300 Product Manual

Universal digital controller
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Procedure #3
Table 7-7 explains how to troubleshoot Alarm Relay Output failure.

Table 7-7 Troubleshooting Alarm Relay Output Failure

Step
Check the alarm configuration
1
data. If it is correct, check the
field wiring.
2
Check that the applicable alarm
relay actuates properly
depending on what you have set
at prompt AxSxTYPE.
If it does, check the field wiring.
3
Check the contacts.
Change Main board.
4
Procedure #4
Table 7-8 explains how to troubleshoot a Keyboard failure.
Step
1
Make sure the keyboard is
connected properly.
2
Controller Keyboard or specific
keys may be LOCKED OUT via
the security code.
3
Replace the display/keyboard if
any keys are not functioning.
1/01
What to do

Table 7-8 Troubleshooting a Keyboard Failure

What to do
UDC2300 Limit Controller Product Manual
How to do it
Reconfigure if necessary.
Refer to Section 4 - Configuration for details.
If the alarm type is set for PV, place the controller in
manual mode. Vary the input to raise and lower the
PV around the 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.
EXAMPLE: If the alarm is set for MAN, put the
controller into manual mode. The alarm light is ON.
Put the controller into automatic mode and the alarm
light is OFF.
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.
How to do it
Withdraw the chassis from the case and visually
inspect the connection.
Use your four-digit security code number to change
the lockout level. Refer to Section 4 – Configuration.
Using "1000" as a security code number will override
the 4-digit code previously entered.
Installation instructions supplied with new
display/keyboard.
Troubleshooting/Service
61

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