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81
FlexFit Pro
PIM temperature protection:
Temperature more than 105°C, and continue 5 seconds, then drive shutdown protection.
Compressor startup failure protection:
The drive will attempt to start the compressor 5 times, at intervals of 15 seconds. When the drive is making five
times the driving signal cannot normally drive the compressor, for the protection of the relevant parts, compressor
will immediately shut down, and the drive will have the compressor drive failure protection.
Limit frequency/shutdown protection
Compressor current protection:
Error
Protection
Protection Condition Result Symbol
Shutdown
protection
Compressor phase current> compressor phase current shutdown
protection current (RMS) , the compressor immediately stop, drive into the
limitedfrequency overcurrent protection.
Limit
frequency
protection
Compressor phase current>compressor Phase current Limit frequency
protection current (RMS) , the compressor will decrease the frequency by
the 2Hz/sec rate.
Limit frequency
protection
After compressor decrease the frequency, compressor phase current
limit frequency protection current (RMS) ≥compressor phase current>
compressor phase current protection recovery current (RMS) , forbid
increase the compressor frequency.
Forbid increase
the compressor
frequency
Protection
recovery
Compressor phase current≤Compressor phase current protection recovery
current (RMS) , cancel the compressor limit frequency protection and
normally operation.
Input current protection of driver:
Error Protection Protection Condition Result Symbol
Shutdown
protection
Compressor phase current>compressor phase current shutdown
protection current (RMS) , the compressor immediately stop, drive into the
limitedfrequency overcurrent protection.
Limit frequency
protection
Compressor phase current>compressor Phase current limit frequency
protection current (RMS) , the compressor will decrease the frequency by
the 2Hz/sec rate.
Limit frequency
protection
After compressor decrease the frequency, compressor phase current
limit frequency protection current (RMS) ≥compressor phase current>
compressor phase current protection recovery current (RMS) , forbid
increase the compressor frequency.
forbid increase
the compressor
frequency
Protection
recovery
Compressor phase current≤Compressor phase current protection recovery
current (RMS) , cancel the compressor limit frequency protection and
normally operation
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