Differential Pressure Sensor Connection; Making The Electrical Connection - Wilo Stratos GIGA Einbau- Und Betriebsanleitung

Name Assignment
SBM Individual run signal/collective run
signal, readiness signal and mains
On signal
SSM Individual/collective fault signal
IF module interface Terminals for serial, digital building
automation interface
Table 13: Terminal assignment
8.6 Differential pressure sensor con-
nection
8.7

Making the electrical connection

Installation and operating instructions • Wilo-Stratos GIGA, Wilo-Stratos GIGA B • Ed.01/2023-05
Notices
Potential-free individual run signal/collective run signal (changeover con-
tact), operation readiness signal is available at the SBM terminals (menus
<5.1.6.0>, <5.7.6.0>).
Contact load:
minimum permissible: 12 V DC / 10 mA,
maximum permissible: 250 V AC / 24 V DC, 1 A
Potential-free single/collective fault signal (changeover contact) is avail-
able at the SSM terminals (menu <5.1.5.0>).
Contact load:
minimum permissible: 12 V DC / 10 mA,
maximum permissible: 250 V AC / 24 V DC, 1 A
The optional IF module is pushed into a multi-plug in the terminal box.
The connection is twist proof.
NOTICE
The terminals In1, In2, AUX, GND, Ext. off and MP meet the
EN 61800-5-1 "safe isolation" requirement
– to the mains terminals
– and to the terminals SBM and SSM (and vice versa).
The control features a PELV (protective extra low voltage) circuit design.
This means that the (internal) supply meets the supply requirements for
safe isolation, the GND is connected to protective earth (PE).
Stratos GIGA
Table 14: Differential pressure sensor connection
Cable Colour
1 Black
2 Blue
3 Brown
Table 15: Connection; differential pressure sensor cable
NOTICE
Guide the electrical connection for the differential pressure sensor
through the smallest threaded cable gland (M12) on the electronic mod-
ule.
For twin-head pump operation in a y-pipe installation, connect the dif-
ferential pressure sensor to the main pump. The measuring points of the
differential pressure sensor must be arranged in the collector pipe on the
suction and discharge side of the y-pipe installation
• Make the connections in accordance with the terminal allocation.
• Earth the pump/installation as per regulations.
• Reinstall any uninstalled safety devices, e.g. module cover!
Stratos GIGA B
Terminal Function
In1 Signal
GND Earth
+24 V +24 V
en
121