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3.8
“Jog” feature
The reset button below the control module may be used as an emergency shutdown,
such as for clearing liquid during start-up. After the module re-boots (approximately
3 seconds) the compressor will run again. The reset button may be pushed as necessary
to stop the compressor.
Reset button
Figure 3
3.9 Crankcase heater (CCH) control
The sensor module contains an on-board CCH control relay. An auxiliary contactor is no longer required to turn the
heater on when the compressor turns off.
The appropriate voltage supply to the CCH power input terminals (115V / 230V) is required.
The control of a 480V crankcase heater is not supported by CoreSense Diagnostics.
3.10 Flash memory information
Emerson Climate Technologies can provide software to access EEPROM information.
The following asset information will be saved in the flash memory (EEPROM):
Compressor model number
Compressor serial number
Compressor model number modified
Compressor serial number modified
Compressor nominal voltage and frequency
Sensor module firmware revision
For dual voltage motors the lower value is saved in EEPROM memory. It is advised to change the nominal voltage
setting values to the correct operating voltage in the EEPROM memory using PC interface software. Even if the
nominal voltage is not changed, there is no effect on the compressor functionality due to this setting.
Compressor running status information will be saved in the flash memory (EEPROM):
Number of compressor running hours
Number of compressor starts
Accumulated runtime without good oil pressure
Number of short cycles (compressor starts with a less than 3-minute runtime)
Compressor operating parameters:
Current
Voltage
Power consumption
Discharge temperature values
Crankcase heater
Power supply
Crankcase heater 115V or 230V
