Wilo Yonos GIGA-N 125-5,5, Инструкция по установке и эксплуатации

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en Product description
12 WILO SE 2020-10
Fig. 4: Example – differential pressure sensor
connection in y-pipe installation
Both pumps are controlled by the master pump.
If one of the pumps malfunctions, the other will run according to the master’s control
settings. In case of a total failure of the master, the slave pump operates at emergency
operation speed. The emergency operation speed can be set in menu <5.6.2.0> (see
section “Operation during interruption of communication”).
The master display shows the status of the double pump. On the slave, the display
shows ‘SL’.
In the example, the master pump is the left-hand pump in the direction of flow. Con-
nect the differential pressure sensor to this pump!
The measuring points of the differential pressure sensor must be on the suction and
discharge side of the double-pump system in the common collector pipe.
Interface module (IF module)
Fig. 5: Insert IF module
For communication between pumps and the building management system, one IF mod-
ule (accessories) is required, which is plugged into the terminal room.
The master-slave communication uses an internal interface (terminal: MP).
For pumps in Y-pipe applications in which the electronic modules are connected to
each other via the internal interface, only the master pumps require an IF module.
Communication Master pump Slave pump
PLR/interface converter
IF module PLR No IF module necessary
LONWORKS network
IF module LON No IF module necessary
BACnet
BACnet IF module No IF module necessary
Modbus
Modbus IF module No IF module necessary
CAN bus
IF module CAN No IF module necessary
Table 1: IF modules
NOTICE
The procedure and further information for commissioning and configuring the IF
module on the pump can be found in the installation and operating instructions of
the IF module used.
4.3.1 Operating modes
Main/standby operation
Only one pump ever runs at a time. Each of the two pumps provides the configured flow
rate. The other pump is available in case of malfunction or runs after pump cycling.