AFX SERIES® OPERATION MANUAL
SECTION 13:
Entire Contents Copyright
2018 by Pacific Power Source, Inc. (PPS)
• All Rights Reserved • No reproduction without written authorization from PPS.
AFX Series Power Source Operation Manual
Page 389 of 402
Error Source
Code
Category
Error Message
Possible Cause
Resolution
Inverter Fault
291
Error
Incorrect DSP type
detected. Cycle-power to
re-try.
Internal Communication
Error. Incorrect DSP type
reported
Try recycling power. If
error persists, contact
customer service
Inverter Fault
292
Error
Output current has too
much high frequency
content
Overload condition.
Possible oscillation. RQ
monitor fault.
Reduce frequency,
voltage or load
Inverter Fault
293
Error
Controller missed
heartbeats from master
front panel.
Power stage has lost
communication with
front panel controller.
Front panel processor
may have locked up
Contact customer service
Inverter Fault
294
Error
Output over-voltage
protection.
High voltage protection
tripped. Output voltage
too high
Possible oscillation with
load. Reduce load
Inverter Fault
295
Error
Invalid constants loaded
from EEPROM.
Inverter Fault
296
Error
Output current peak
protection.
Overload condition. Load
current peak level
exceeds peak level
protection setting
Reduce Load
Inverter Fault
297
Error
Remote voltage sensing
fault.
External Voltage Sense.
Problem with
external/remote sense
Check external voltage
sense connection
Inverter Fault
298
Error
Internal capacitors over-
current protection.
Overload condition
Inverter Fault
299
Error
Internal bus over-voltage
protection. Possible
regenerative load.
Overload condition.
Internal DC Bus Voltage is
being pumped up
Possible regenerative
Load connected
Inverter Fault
300
Error
CSC loop has saturated
CSC Error. CSC correction
out of range. Could not
regulate voltage to set
point
Increase saturation range
Inverter Fault
301
Error
Output current overload.
RMS current exceeded
limit.
Overload condition. Load
current RMS level
exceeds RMS level
protection setting
Reduce load
Inverter Fault
326
Error
Controller is not in
operational node.
An inconsistency was
detected in the power
source's internal
communication network.
Turn unit off, check
parallel cable connections
if present and then turn
unit back on. If problem
recurs, contact customer
service.
Inverter Fault
327
Error
Missing controller node.
An inconsistency was
detected in the power
source's internal
communication network.
Turn unit off, check
parallel cable connections
if present and then turn
unit back on. If problem
recurs, contact customer
service.
Inverter Fault
328
Error
Cannot read fault
information.
Internal Communication
Error. Unable to read
fault info
Contact customer service