Dual Pump Function - salmson LRE Notice De Montage Et De Mise En Service

English
6.3

Dual pump function

InterFace-Module (IF-Module)
57
NOTE
The characteristics described below are only available when the inter-
nal MP interface (MP = multi-pump) is used.
• Both pumps are controlled by the master.
If one of the pumps malfunctions, the other will run according to the
master's control settings. If there is a total failure of the master, the
slave will run at the emergency operation speed.
The emergency operation speed can be set in menu <5.6.2.0> (see
Section 6.3.3 on page 59).
• The master's display will show the status of the double pump. On the
slave display, "SL" will appear.
• The master pump is the left pump in the direction of flow.
Connect the differential pressure sensor to this pump.
The measuring points of the differential pressure sensor of the master
pump must be on the suction and pressure side of the double-pump
system in the respective collector pipe.
For communication between pumps and the main computer for the
pumps , one IF-Module (accessory) is required per pump. This is
plugged into the terminal space (Fig. 1).
• The master-slave communication uses an internal interface (terminal:
MP, Fig. 19).
• Normally for double pumps, only the master pump must be equipped
with an IF-Module.
Communication
LONWORKS network
BACnet
Modbus
CAN bus
Master Slave
LON IF-Module not necessary
BACnet IF-Module not necessary
Modbus IF-Module not necessary
CAN IF-Module not necessary
Pompes Salmson 04/2011