Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD User Manual
Page 123
Troubleshooting
Chapter 7
7Ć39
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.
Type of Message
N = NonĆlatched
L = Latched
T = Trip Condition
Code
P = at PowerĆup
Alt = Alternate chassis
Ethr = Either chassis
Top = Top chassis
Bot = Bottom chassis
Binary
Diagnostic Message (figure References)
Code
Type
Hex
Motion Detector and Pressure Switch Faults
1011 1011
BB
T
Motion detector signal present though motion detector feedback is not configured.
1011 1100
BC
T
Air pressure signal present though air pressure feedback is not configured.
1011 1101
BD
T
Air pressure signal on when triacs are off.
1011 1110
BE
T
Air pressure signal on when triacs are on.
1011 1111
BF
T
Air pressure signal remains after triacs turn off.
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