Electrical Installation; Safety Precautions; Terminal Compartment - Helios FU Comfort Sinus Manuel De Montage Et D'utilisation

Installation and Operating Specification FU Comfort Sinus

5 Electrical installation

5.1

Safety precautions

Danger due to electric current
•
Work on electric components may only be carried out by trained electricians or by persons
instructed in electricity under the supervision of an electrician in accordance with electrical
engineering regulations.
•
The 5 electrical safety rules must be observed!
•
It is forbidden to carry out work on electrically live parts. Even after disconnection, the dc-link is still
live. Always wait at least 3 minutes.
•
Cover neighbouring electrical equipment during installation work.
•
Other measures may be necessary to achieve safe electrical isolation.
•
A second person must always be present when working on energized parts or lines who
disconnects in case of emergency.
•
Electrical equipment must be checked regularly: Loose connections are to be re-tightened and
damaged lines or cables must be replaced immediately.
•
Always keep switch cabinets and all electrical supply facilities locked. Access is only allowed for
authorized persons using a key or special tool.
•
Operating the device with the housing cover removed is prohibited because energized, exposed
parts are present inside the device. Disregarding this regulation can lead to severe personal injury.
•
For metal cable inlets the necessary protective earth connection to the bottom of the housing is
made by screws. The device may only be started up when these screws are fitted properly.
•
The required protective earth connection is established using screws between the housing parts in
metal terminal space covers and housing casings. Commissioning is only permissible after these
screws have been properly attached!
•
Metal screwed-connections are not permitted in plastic housing parts because there is no potential
equalization.
•
The device owner is responsible for the EMC of the entire plant according to the locally applicable
standards.
•
Never clean electrical equipment with water or similar liquids.
Information
The respective connections are represented in the enclosure of this manual (
5.2

Terminal compartment

Example: Position of terminals for devices in sheet metal housing
1 Line
2 Motor
3 Control
4 Indication relays
5 MODBUS
L-BAL-E304-GB 2004 Part.-No.
14/139
Electrical installation
Connection diagram)!