Danfoss VACON 100 FLOW Series Application Manual page 46

VACON® 100 FLOW
Application Guide
The figure Illustration 17 shows an example of the Multimaster mode, where the speed of the regulating motor locks to the con-
stant production speed B, when next motor starts. Curves A show the regulating of the pumps.
RPM
f
max
f
min
P1
P2
Illustration 17: Control in the Multimaster Mode
A Curves A show the control of the pumps
B The pumps are locked to the constant production frequency
Autochange function (change of start order) makes the wear of the motors in the system more equal. Autochange function moni-
tors the running hours and sets the start order of each motor. The motor that has the lowest running hours starts first and the motor
that has the highest running hours starts last. It is possible to configure the autochange to start based on the autochange interval
time or on the internal real-time clock of the drive (an RTC battery needed).
46 | Danfoss A/S © 2023.08
B
A
P3
t
Applications
AB298035655957en-000201 / DPD01083