1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10
IC200D
57/192
Part Winding Start-Up
15.1.2
Each compressor needs two relay outputs:
Part Winding coil 1 of the compressor;
Part Winding coil 2 of the compressor.
The time delay between coil 1 and coil 2 activation is CO11 (decimal of second, in a range 0..5 seconds).
EXAMPLE
Part Winding configuration of the compressor relay outputs
RL1: set Par CF41 = c39 Part Winding coil 1 the compressor 1;
RL2: set Par CF42 = c40 Part Winding coil 2 of the compressor 1.
Compressor Start- up With Part Winding
15.1.3
First step: the Part winding coil 1 of the compressor 1 (relay K1 of fig2) is switched on
Second step: after the CO11 delay is turned on the Part winding coil 2 of the compressor 1 (relay K2 of fig2).
To turn off the compressor the two relay outputs are both turned off at the same time.
Fig 2
Part Winding start- up of Compressors or capacity compressors
15.1.4
If one or more capacity compressors are configured and the thermoregulation requires the full load start-up:
the controller turns the solenoid valve on, after 1 second the first motor part of the 1
st
compressor (relay K1
of Fig. 2) and then the complete control with the contactor K2. Durning the CO13 time delay the step valve is
forced on: minimum power. When the C013 is expired if the thermoregulation requires more power the valve
will be switched off (maximum power).
15.2 COMPRESSORS ROTATION
The
CO14
parameter determines the sequence of compressor activation / deactivation.
CO14= 0
Fixed sequence.
E.g.: 3 compressors configured
Switching on: 1
st
compressor
2
nd
compressor
3
rd
compressor
etc.
Switching off: 3
rd
compressor
2
nd
compressor -
1
st
compressor
CO14= 1
Working hour rotation
First compressor to be activated is the compressor with less working hours; next compressor to be activated
follows the same rule.
CO14= 2
Sart-up rotation
First compressor to be activated is the compressor with less start-up; next compressor to be activated
follows the same rule.
