Installation And Electrical Connection - Wilo IF Instrucciones De Instalación Y Funcionamiento

6.2 Function
An exact function description is not included in these installation and operating
instructions. An up-to-date description of the protocol can be obtained from
www.wilo.com/automation.

7 Installation and electrical connection

Installation and electrical connection must be carried out in accordance with
local regulations and only by qualified personnel.
Warning! Risk of personal injury!
The existing directives for accident prevention must be adhered to.
Warning! Risk of fatal electrical shock!
Danger from electrical current must be eliminated. Local directives or gen-
eral directives [e.g. IEC, VDE etc.] and those of local power supply companies
must be adhered to.
7.1 Installation
To ensure immunity in industrial environments (EN 61000-6-2) the data cables
must be shielded cables and must be used with an EMC-compliant cable gland
(pumps 5.5 - 7.5 kW, Fig. 2) or the holder (included with the module) for screen
fastening (pumps up to 4 kW, Fig. 1) . For optimal transmission, the data cable
pair should be twisted and have surge impedance of 120 Ω.
Warning! Danger of electric shock!
The pump should be electrically isolated and secured against unauthorised
switch-on before beginning installation of the IF-Module.
Installation and operating instructions Wilo-IF-Modules Modbus, BACnet
English
25