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9.3 Failure Subsystem
Excessive intake/exhaust temperatures, any reducon in cooling air ow, or a Loss of
Communicaon from either the hand-held controller or the controlling load bank is
indicated by the illuminaon
of the “Error” indicator on the
hand-held remote control.
Any of the above condions
will result in the load bank
entering a failure state. The
“Failure” indicator on the
hand-held controller will
illuminate and the load de-
energizes. All load steps are
locked out unl the problem is
corrected. Unl the failure is
invesgated/corrected and the control system is reset the load cannot be reapplied.
Problem Cause Resoluon
High Exhaust
The unit has
overheated due to:
1
The fan has
stopped running.
The unit needs to be serviced.
Please contact a technician for
your problem.
2
The unit lacks
sucient exhaust
space.
Move the unit to an area that
allows for proper air circulaon.
Metering Sys Fault
Communicaons failure between PLC and
meter.
Turn the unit o, disconnect all
power cables, and wait a couple
of seconds. Reapply power and
turn the unit on. If the problem
persists, contact a technician for
your problem.
Over KW/Under KW
Metered load does not match expected
load.
The connecon may be loose
or the wire may have become
disconnected. Please contact a
technician for your problem.
Slave # Failure
When mulple units are chained together, the primary unit will display “Slave [Unit
Number] Failure.” You must inspect that unit to resolve the failure.
Table 5 Trouble Shooting Table
WARNING
If a failure occurs during Load Bank opera-
on, the Load Bank will de-energize all load
steps The operator must reset the Load
Bank by turning it “O” then “On.” The
load failure must be invesgated and cor-
rected before load applicaon can resume.
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