Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD User Manual
Page 122
Troubleshooting
Chapter 7
7Ć38
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
Hex
Type
Code
Diagnostic Message (figure References)
Other Cam Limit Switch Faults
1010 1000
A8
N
P
Cam switches cannot determine shaft position. Inch to top.
1010 1001
A9
N
P
All cam switches are open.
1010 1010
AA
L
Cam switches cannot determine shaft position. Inch to top.
General Faults
1010 1011
AB
N
Not used.
1010 1100
AC
L
Crowbar test input is ON. Check wiring of crowbar testt circuit
1010 1101
AD
N
Awaiting turn off of crowbar relay test.
1010 1110
AE
N
Awaiting turn off of crowbar relay test.
1010 1111
AF
N
Awaiting solenoid power.
Configuration Error
1011 0000
B0
N
Alt
Configuration error in alternate module. Configure it correctly or match inputs to your
configuration.
1011 0001
B1
N
Turn off backplane switch 1.
1011 0010
B2
N
Stations 3 and 4 configuration bitr and backplane switch mismatched
1011 0011
B3
N
Motion detector configuration bit and backplan switch mismatched.
1011 0100
B4
N
Valve stem switch configuration bit and backplance switch mismatched.
1011 0101
B5
N
Air pressure switch configuration bit and backplane switch mismatched.
1011 0110
B6
N
Ungrounded/grounded AC power configuration bit and backplane switch mismatched.
1011 0111
B7
N
OnĆtheĆhop configuration bit and backplane switch mismatched.
1011 1000
B8
N
StrokeĆandĆaĆhalf configuration bit and backplane switch mismatched.
1011 1001
B9
N
Dump valve configuration bit disagrees with corresponding I/O modules in chassis.
1011 1010
BA
N
An I/O input module is missing.