Advanced Energy Industries AMN PS-2A, User Manual, Page: 46 / 53

5708577-A 6-3
AMN PS-2A
Troubleshooting Flow Chart
Use this chart to troubleshoot the AMN PS-2A controller. To begin, select the
problem you are experiencing from the boxes on the left side of the diagram.
PS-2A does
not adjust
servomotors
in automatic
mode.
PS-2A does
not adjust
servomotors
in manual
mode.
PS-2A does
not operate in
any mode.
Yes
No
Can you adjust
servomotors in
manual mode?
No
Yes
Enable RF power at
100 W. Manually
adjust matching
network for optimum
match point (<1 W
reflected RF).
Do
servomotors
respond?
Matching
network RF
path fault.
Contact AE
Global
Support.
No
Yes
Yes
No
Power LED lit?
Yes
Ensure that input
power to PS-2A
meets
specifications.
No
Input power to
the PS-2A?
No
Check whether
system-related
circuit breakers
have been tripped.
AMN PS-2A internal
fault. Contact AE
Global Support.
Yes
Phase/
magnitude (J1 or
J3 and J4)
properly
connected?
Fix
connections.
No
Cables
connected
to J1, J3, or J4
damaged?
Yes
Possible fault in
matching network
phase/magnitude
detector. Contact
AE Global Support.
Replace
cables.
No
Yes
PS-2A does
not adjust
servomotors
in remote
mode
Remote I/O
cable properly
connected to J2?
Contact AE
Global Support
Connect cable.
In automatic
mode, The
PS-2A
adjusts the
servomotors,
but doesn't
achieve
optimum
match point.
Does match
network run past
match point?
Phase and/or
magnitude gain are
set too high.
Decrease gain.
Match won't track
small variations.
Increase phase/
magnitude gain.