Alfa Laval 881176-09-01/1, Instruction Book

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6 Technical references 6.5 Interface description
6.5.5 Description of separator
modes
For control purposes the operation of the
separator should be divided into different modes.
The normally used modes are described below
but other modes might exist.
It is assumed that:

The separator is correctly assembled.

All connections are made according to
Connection List, Interconnection Diagram,
and Interface Description.

The separator control system is activated.
If above conditions are not fulfilled the separator
will be in
SERVICE mode.
STAND STILL means:

The power to the separator motor is off.

The bowl is not rotating.
STARTING means:

The power to the separator motor is on.

The bowl is rotating and accelerating
RUNNING means:

The power to the separator motor is on.

The bowl is rotating at operating speed.
RUNNING is a collective denomination for a
number of sub modes which e.g. can be:

STAND BY : Separator is in a waiting
mode and not producing.

PRODUCTION : Separator is fed with
product and producing.