Manual

Troubleshooting
Chapter 7
726
Diagnostic message codes are displayed by indicators connected to module group 5, slot 1 (figure 6.18), or by
displaying the corresponding data table word using the industrial terminal.
Use this table in conjunction with figure 7.1 and figure references shown in parentheses.
T ype of Message
N = Nonlatched
L = Latched
T = Trip
Condition
Code
P = at Powerup
Alt = Alternate chassis
Ethr = Either chassis
Top = T op chassis
Bot = Bottom chassis
Hex
Code
Diagnostic Message (figure References) Type
28 T Active input changed from closed to open. Check wiring.
29 Alt T Active input changed from closed to open. Check wiring.
2A T (NC) RUN button bypass is open. Check wiring
2B Alt T (NC) RUN button bypass is open. Check wiring
2C T (NO) RUN button bypass is open. Check wiring
2D Alt T (NO) RUN button bypass is open. Check wiring
2E Not Used.
2F Not Used
Station 3
(Figure 6.15)
30 N Check configuration of RUN button signals. Make station active or bypassed
31 N RUN button not released. Check (NO) contacts.
32 Alt N RUN button not released. Check (NO) contacts.
33 N RUN button not released. Check (NC) contacts.
34 Alt N RUN button not released. Check (NC) contacts.
35 P N Make left and right active connections identical.
36 P N (NC) RUN button is open. Check button or wiring.
37 P N (NO) RUN button is shorted. Check button or wiring.
38 T Active input changed from closed to open. Check wiring.
39 Alt T Active input changed from closed to open. Check wiring.
3A T (NC) RUN button bypass is open. Check wiring
3B Alt T (NC) RUN button bypass is open. Check wiring
3C T (NO) RUN button bypass is open. Check wiring