Electrical Connection - salmson LRE Notice De Montage Et De Mise En Service

7.2

Electrical connection

Safety
Preparation/notes
Fig. 18: M25 threaded cable connection
Installation and operating instructions LRE-JRE
DANGER! Risk of fatal injury!
Improper electrical connections can lead to fatal electrical shocks.
• Have the electrical connection established by an electrician
approved by the local electricity supplier only, in accordance with
local regulations.
• Observe the installation and operating instructions for the acces-
sories!
DANGER! Risk of fatal injury!
Contact voltage can be life-threatening
Work on the module may only be started once 5 minutes have
passed, due to the dangerous residual contact voltage (capacitors).
• Before working on the pump, disconnect the power supply and
wait for 5 minutes.
• Check to ensure all connections (including potential-free contacts)
are voltage-free.
• Never use an object to poke around the openings on the module
and never insert anything into the module!
WARNING! Risk of mains overload!
An inadequate mains design can lead to system failures and even to
cable fires due to mains overload.
• When designing the mains, with regard to the cable cross-sections
and fuses, give special consideration to the fact that short-term
simultaneous operation of all pumps is possible in multi-pump
operation.
• The electrical connection must be established via a fixed power cable
1
(cross-section to be maintained: 4 x 1.5 mm
which has a plug attachment or an all-pole switch with a contact
opening of at least 3 mm. The power cable is to be fed through the
M25 threaded cable connection (Fig. 18, Item 1).
• In order to comply with electromagnetic compatibility standards, the
following cables must always be shielded:
• DDG (if installed on-site)
• IN2 (setpoint)
• DP communication (for cable lengths > 1 m); ("MP" terminal)
Pay attention to polarity:
MA = L => SL = L
MA = H => SL = H
• Ext. Off
• AUX
The shield must be applied to both sides: on the EMC cable clips in the
module and on the other end. The lines for SBM and SSM do not have
to be shielded.
• In order to ensure drip protection and strain relief on the threaded
cable connection, cables with a sufficient outer diameter must be
used and must be screwed sufficiently tightly. Also, the cables near
the threaded cable connection are to be bent to form a drainage loop,
to drain any accumulated drips. Position the threaded cable connec-
tion or lay the cables accordingly to ensure that no drips can run into
the module. Non-assigned threaded cable connections must remain
sealed with the plugs provided by the manufacturer.
English
2 2
, min.; 4 x 4 mm , max.),
64