Siemens bt300 Operator's Manual page 103

Selection 1, Enabled:
If the regulating motor needs to be included in the auto-change or interlock logic make the connection according to
the following figure.
Each motor is controlled by a relay, but the contact logic ensures that the first connected motor is always
connected to the drive and near the mains.
Siemens Industry, Inc.
Building Technologies
Figure 32: Multi-pump: FC Disabled.
Siemens BT300 HVAC Drive
Chapter 4 - Parameters and Menu Structure
Parameters (M3)
103 | 180
DPD01809
2016-06-07