Scope Of Delivery; Description And Function; Installation And Electrical Connection - Wilo If-Module Stratos Ext. Off Oem Notice De Montage Et De Mise En Service

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5.3 Scope of delivery

• IF-Module
• Metal EMC cable gland PG 9
• Installation and operating instructions

6 Description and function

6.1 Description of the IF-Modules
The IF-Module Stratos Ext. Off OEM extends the pump with supplementary
inputs and outputs and makes the connections for external control of the pump
available via an 0-10 V analogue signal.
6.2 Function
Ext. Off: Input for potential-free NC contact.
• Contact closed: pump operates under auto control.
• Contact open: pump off.
0-10 V: Control input.
• Remote setpoint adjustment: differential pressure control is active on the
pump. The setpoint for differential pressure is given by the analogue voltage
0-10 V (Fig. 1).
• Remote speed adjustment: differential pressure control is de-activated on the
pump. The pump operates as an actuator with a constant speed, which is
given by the voltage 0-10 V (Fig. 1).

7 Installation and electrical connection

Installation and electrical connection must be carried out in accordance with
local regulations and only by qualified personnel.
24 WILO SE 10/2013