Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD User Manual
Page 119
Troubleshooting
Chapter 7
7Ć35
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
1110 0110
E6
T
Aux. valve stem signal off when triacs are on.
1
1110 0111
E7
T
Alt
Aux. valve stem signal off when triacs are on.
1
1110 1000
E8
T
Dump valve stem signal off when traics are on.
1
1110 1001
E9
T
Alt
Dump valve stem signal off when traics are on.
1
1110 1010
EA
T
Main valve stem signal remains on after triacs turn off.
1
1110 1011
EB
T
Alt
Main valve stem signal remains on after triacs turn off.
1
1110 1100
EC
T
Aux. valve stem signal remain on after triacs turn off.
1
1110 1101
ED
T
Alt
Aux. valve stem signal remain on after triacs turn off.
1
1110 1110
EE
T
Dump valve stem signal remains on after traics tuirn off.
1
1110 1111
EF
T
Alt
Dump valve stem signal remains on after traics tuirn off.
1
Hardware or Cable Fault
1111 0000
F0
T
Alt
Chassis power tripped or chassis restarted. (6.1, 6.6)
1111 0001
F1
L
Lost communications between 1771ĆPM modules. Reset latched message, check cables, or
cycle power. (3.3)
1111 0010
F2
L
Lost communications with PC. Reset latched mesage, check cables, or cycle power. (3.3)
1111 0011
F3
L
Alt
Lost communications with PC. Reset latched mesage, check cables, or cycle power. (3.3)
1111 0100
F4
N
Lost communications between 1771ĆPM modules.
2
1111 0101
F5
N
Hardware fault in 1771ĆPM module. Replace it.
1111 0110
F6
N
Turn off backplane switch 1. (3.4)
1111 0111
F7
N
Hardware fault in 1771ĆPM module.
2
1111 1000
F8
N
Not used
1111 1001
F9
N
Hardware fault in 1771ĆPM module.
2
1111 1010
FA
N
1771ĆPM modules must be same revision.
1111 1011
FB
N
Hardware fault in 1771ĆPM module. Replace it.