Hyper EarthLinked Sure-Start, Руководство по эксплуатации

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SS-IOM (05/14) Page 6
SureStart Operation
When the system control calls for compressor operation, the compressor contactor will energize. If
the supply voltage is less than “minimum startup voltage”, a 50 second delay is initiated. At the end
of the delay, another attempt will be made to start the compressor unless the supply voltage
remains unchanged.
See Figure 6 for the SureStart Mode of Operation.
SureStart uses an optimized starting process that learns the starting characteristics of the
compressor to further refine the starting cycle on each recurring start.
If the compressor fails to start, the module will terminate the start attempt after 1 second and initiate
a 3 minute lockout before attempting a restart.
While the compressor is running, if supply voltage falls below the “shutdown on low voltage” limit for
2 seconds, SureStart will stop the compressor and initiate a 3 minute lockout. A restart will be
initiated after 3 minutes if the supply voltage is equal to or greater than the “minimum startup
voltage”. This is done to protect the compressor against a sudden drop in supply voltage.
SureStart is able to detect an interruption in power, when the interruption is 0.1 seconds or longer.
When a power interruption is detected, it will shut down the compressor for 3 minutes. A power
interruption that is shorter than 0.1 seconds may result in the compressor running backwards.
SureStart is able to determine if the compressor is running backwards. If this condition is detected,
the control will stop the compressor for 3 minutes before restart is initiated.
If the run capacitor is faulty or has failed, SureStart will shut down the compressor for 3 minutes
before initiating a restart.