Vacon 100 INDUSTRIAL Applications Manual - page 69
3
vacon • 67
VACON HVAC Drive Application
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EXAMPLE OF THE INTERLOCK LOGIC:
If the motor starting order is
1->2->3->4->5
Now, the interlock of motor 3 is removed, i.e. the value of parameter P3.5.1.29 is set to FALSE,
the order changes to:
1->2->4->5.
If motor 3 is taken into use again (changing the value of parameter P3.5.1.29 to TRUE) the sys-
tem runs on without stopping and motor 3 is placed last in the sequence:
1->2->4->5->3
As soon as the system is stopped or goes to sleep mode for the next time, the sequence is up-
dated to its original order.
1->2->3->4->5
P3.14.3
WIRING
There are two different ways to make the connections depending on whether selection 0 or 1
is set as parameter value.
Selection 0, Disabled:
The frequency converter or the regulating motor is not included in the autochange or inter-
locks logic. The drive is directly connected to motor 1 as in Figure 19 below. The other motors
are auxiliary ones connected to the mains by contactors and controlled by relays in the drive.
Selection
Selection name
Description
0
Disabled
Motor 1 (motor connected to frequency converter) is
always frequency controlled and not affected by
interlocks.
1
Enabled
All motors can be controlled and are affected by
interlocks.