Rockwell Automation 1771-QC , D17716.5.25 SER/B SERVO POS - Manual (Page 221)

Troubleshooting
Chapter 10
10Ć9
Figure 10.5 Troubleshooting Flowchart (continued)
Hardware
?
Block
?
Is second
?
Processor
RUN
indicator
?
Program
Bits 12, 11,
?
?
Check module address
YES
NO
YES
YES
NO
NO
YES
NO
NO
YES
A
11068 OS
B
stop indicator
on
transfer DONE
bits toggling
in block transfer
instructions
Display status
block on
industrial terminal
status word a legal
address
Check parameter
block address
pointer words
(2 through 5)
error or parameter
out of range
10 in 2nd status
word = 000
Bits 12, 11,
?
10 in 2nd status
word = 111
YES
NO
Check parameter
block values
Error in move set
Perform a
manual jog
YES
Jogs
?
o.k.
Check command
block for illegal
bit combinations
NO block with i.d.
indicated by value
of bits 12, 11, and 10.
9
1. Reset 1771ĆES expander
wiring arms.
2. Check hardware stop
circuit
3. Issue Reset command via
command block
4. Cycle power at I/O chassis
5 5
1. Check for active stop
commands.
2. ReĆcheck for errors
in status block
3. Cycle 1771ĆES
expander power
4. Check for active stop
commands in motion
control block
5. Check encoder and
encoder wiring.
Ensure that axis
integration has been
performed correctly.
4
6
7
8