Vacon NX Series Applications Manual page 331

PARAMETER DESCRIPTIONS
If the number of running auxiliary drives is smaller than the value of parameter ID1030
•
the autochange function can take place.
If the number of running auxiliary drives is equal to the value of parameter ID1030 and
•
the frequency of the controlled drive is below the value of parameter ID1031 the
autochange can take place.
If the value of parameter ID1031 is 0.0 Hz, the autochange can take place only in rest
•
position (Stop and Sleep) regardless of the value of parameter ID1030.
f
out
Par. ID1031
Autochange
level,
frequency
Autochange interval
Aux. drive
1 control
Aux. drive
2 control
Fig. 88: Autochange interval and limits
1032 INTERLOCK SELECTION 7 (2.9.23)
Use this parameter to enable or disable the interlocks.
The interlock feedback signals come from the switches that connect the motors to the
automatic control (AC drive), directly to the mains or place them to off-state. The interlock
feedback functions are connected to the digital inputs of the AC drive. Program parameters
ID426 to ID430 to connect the feedback functions to the digital inputs. Each drive must be
connected to its own interlock input. The Pump and fan control controls only those motors
whose interlock input is active.
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
Par. ID1030 = 1
Max.number of
auxiliary drives
Par. ID1029
Autochange moment
Par. ID1029
Autochange interval
VACON · 331
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