Differential Pressure Sensor Connection; Wilo Net Connection For Twin-Head Pump Function - Wilo Yonos GIGA2.0-I Einbau- Und Betriebsanleitung

en
7.4 Differential pressure sensor con-
nection
7.5 Wilo Net connection for twin-head
pump function
148
NOTICE
The control is designed as a SELV (Safe Extra Low Voltage) circuit. In this
way, the (internal) supply fulfils the requirements for safe separation of
the supply. GND is not connected to PE.
NOTICE
The pump can be switched on and off without intervention from the oper-
ator. This can be done, for example, using the control function, by external
BMS connection or also by the EXT. OFF function.
If pumps are delivered with a differential pressure sensor fitted, it is connected to analogue
input Al 1 at the factory.
If the differential pressure sensor is connected on-site, carry out the cable assignment as
follows:
Cable Colour
1 Brown
2 Black
3 Blue
Table 12: Connection; differential pressure sensor cable
NOTICE
For a twin-head pump or Y-pipe installation, connect the differential
pressure sensor to the main pump! The measuring points of the differen-
tial pressure sensor must be on the suction and discharge side of the
twin-head pump system in the common collector pipe. See "Twin-head
pump installation/Y-pipe installation" [" 139] section.
Wilo Net is a Wilo system bus used for establishing communication between Wilo products:
• Two single pumps as a twin-head pump in the Y-piece or one twin-head pump in a
twin-head pump housing
NOTICE
For Yonos GIGA2.0-D, the Wilo Net cable for twin-head pump commu-
nication is factory-fitted to both electronic modules.
In order to establish the Wilo Net connection, the three H, L, GND terminals must be wired
with a communication cable from pump to pump.
Incoming and outgoing cables are clamped in a terminal.
Cable for Wilo Net communication:
To ensure interference immunity in industrial environments (IEC 61000-6-2), use a shiel-
ded CAN bus cable and an EMC-compatible cable entry for the Wilo Net cables. Connect
the shield to earth at both ends. For optimum transmission, the data cable pair (H and L)
must be twisted at Wilo Net and have a characteristic impedance of 120 ohms.
Installation and operating instructions • Wilo-Yonos GIGA2.0-I/-D • Ed.01/2023-03
Terminal Function
+24 V +24 V
In1 Signal
GND Earth