Alfa Laval 9016159-80, Instruction Manual

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4 Description of main parts
13. Starter/control unit
For starting, stopping and supervising
the cleaning unit (except heater). The
main part in the control unit is the PLC
(Programmable Logic Computer) which
supervises the starting and stopping of the
cleaning unit. It also supervises system
functions as:frequency converters, one for
the separator and one for the pump.
motor load
bowl hood interlock
amount of liquid in the collecting tank
counter pressure at outlet
supervising the heater
The red alarm light on top of the Control cabinet
(14) indicates if there is any problem with the
supervised functions. Detailed information of
the problem is presented on the operator panel.
See
6.2 Alarm light pattern on page 32
14