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8.5 Overcurrent and Current
Imbalance
If the compressor current exceeds an acceptable
level for the compressor or inverter, the inverter
will reduce the compressor speed to allow the
current to return to an acceptable level. If there is a
current imbalance between the compressor 3-phase
windings, the inverter will shut the compressor down
for 5 minutes and will lock the compressor out if there
are 3 faults within a single call for operation.
8.6 Compressor Operation
Outside Envelope
If the inverter detects that the compressor motor torque
exceeds an acceptable level for the compressor, the
inverter will reduce the compressor speed to keep the
torque at an acceptable level.
8.7 Over and Under Voltage
If the supply voltage or internal DC voltage is not
within an acceptable operating range, the inverter will
shut the compressor off until the voltage returns to an
acceptable level.
8.8 Inverter Over Temperature
If the internal inverter temperature sensors detect
excessive temperatures within the inverter, the inverter
will reduce the speed of the compressor or shut the
compressor down until the temperatures drop to an
acceptable level. The compressor will be locked out
if there are 3 faults within a single call for operation.
8.9 Controls and
Communication Malfunction
If the controls senses a malfunction within the control
system or communications or if system model data is
not available, the controls will act to shut the system
down to prevent the system from operating at a
condition that could harm components.
8.0 ACTIVE SYSTEM PROTECTION FEATURES
System Protection
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