United Security Products AVD-45c Manual Pagina 278

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264 UDC 6300 Process Controller Product Manual 1/03
8.7 Troubleshooting Procedures, Continued
Procedure #5
Table 8-12 explains how to troubleshoot a Keyboard failure.
Table 8-12 Troubleshooting a Keyboard Failure
Step What to do How to do it
1
Make sure the keyboard is
connected properly to the
Display board.
Withdraw the chassis from the
case and visually inspect the
connection.
2
Controller Keyboard may be
“LOCKED OUT” via the security
code.
Use your 4 digit security code
number to change the lockout
level. Refer to Section 3 –
Configuration.
ATTENTION
Using “1000” as a
security code number will override
the 4-digit code previously
entered.
3
Run the keyboard test.
Press the SET UP
key and hold
in, then press the FUNC
key at
the same time. The controller will
run a display test. Then you will
see:
(Key Name)
Lower Display
KEYS
Upper Display
Press each key. If it works, the
key name will appear in the lower
display.
4
Replace the keyboard if any
keys are shorted out.
Refer to “Parts Replacement
Procedures” in this section.
Continued on next page
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