6.2 Oil pressure protection
The Next Gen CoreSense module receives an input from the oil
pressure differential sensor (OPS3) located in the oil pump. The
module will issue a warning when the oil pressure differential
falls below 0.95 bar for 4 seconds. Once the oil pressure differen-
tial falls below 0.95 bar for more than 2 minutes, the module will
trip the compressor and a "low oil pressure lockout" will be
reported. Before using the reset button, troubleshooting needs
to be done to understand the failure. The compressor will switch
ON once the CoreSense is manually reset.
6.1 Warnings, trips and lockouts
Next Gen CoreSense module provides 3 different protection levels. Each of them has its
own LED colour.
-
Warning alarms:
Compressor will continue to run.
-
Trip alarms:
Compressor turns off for defined time with automatic reset. If the
compressor was stopped due to a fault condition, the compressor will restart
when the fault condition is cleared and the defined off time has elapsed.
-
Lockout alarms:
Compressor turns off, manual reset is necessary. If the compressor
was stopped due to a fault condition, the compressor will restart when the fault
condition is cleared and a manual reset using the reset button is pressed. If a
Modbus extension module is mounted, the reset can be done via Modbus.
Basic features
Motor Overheat protection
High discharge temperature protect
ion
Insufficient oil pressure protection
Oil level protection (OM3)
–
Not used
Current protection
Phase failure protection
Power consumption measurement
Under/over voltage protection
Crankcase heater control
Part winding protection
Switching frequency overstepping protection
Connection with computer
LEDs on terminal box cover
Reset
button for manual reset
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