Danfoss VACON 100 FLOW Series Application Manual page 45

VACON® 100 FLOW
Application Guide
3
A
M1
Illustration 15: Multi-pump (Multidrive) Configuration
A Start / Stop
B Pressure sensor
It is possible to control a process variable, the pressure, for example, by the control of the speed of the regulating motor and by the
number of motors that operate. The internal PID controller in the drive of the regulating motor controls the speed, the start and
stop of the motors.
The selected operation mode specifies the operation of the system. In the Multifollower mode, auxiliary motors follow the speed of
the regulating motor.
Pump 1 controls and pumps 2 and 3 follow the speed of pump 1, as the curves A show.
RPM
f
max
f
min
P1 P2
Illustration 16: Control in the Multifollower Mode
Danfoss A/S © 2023.08
M2
M1
B
M2
M3
A
P3
M3
t
Applications
AB298035655957en-000201 / DPD01083 | 45