Elmo Rietschle G-BH9 - Manual (Page 16)

Installation
610.44434.40.000 16 / 32 © Gardner Denver Deutschland GmbH
Electrical power supply:
Observe the rating plate.
It is imperative that the operating conditions
correspond to the data given on the rating plate!
Deviations permissible without reduction in
performance:
 ±5 % voltage deviation
 ±2 % frequency deviation
Connection to drive-motor terminal box:
Open the required cable entry openings on the
terminal box. Here the following two cases are
differentiated:
 The cable entry opening is prefabricated and
provided with a sealing plug.
 Screw out sealing plug.
OR
 The cable entry opening is closed off with a
casting skin (only on pump-motor units with
drive-motor axis heights of 100 to 160 in
standard design).
 Break out casting skin using a suitable tool.
For example, use a metal pin with a
corresponding diameter or a chisel and
hammer.
CAUTION
When pounding out the casting skin on the
cable entry openings in the terminal box, the
terminal box or its parts can be damaged (e.g.
terminal board, cable connections).
Proceed with suitable caution and precision
when doing so! Prevent flash formation!
Mount cable glands on the terminal box. Proceed
as follows:
 Select one cable gland in each case which is
suitable for the cable diameter.
 Insert this cable gland in the opening of the
terminal box.
Use a reducer if necessary.
 Screw on the cable gland so that no moisture,
dirt etc. can penetrate into the terminal box.
Carry out the connection and the arrangement of
the jumpers in accordance with the circuit
diagram in the terminal box
.
Connect the protective conductor to the terminal
with the following symbol:
.
The electrical connection must be carried out as
follows:
 The electrical connection must be
permanently safe.
 There may be no protruding wire ends.
 Clearance between bare live parts and
between bare live parts and ground: ≥ 5.5 mm
[0.217"] (at a nominal voltage of U
N
≤ 690V).
 For the tightening torques for terminal board
connections (except terminal strips), see
Chapter 3.1, "Mechanical data",
Section "Tightening torques for screw
connections", Pg. 10.
 For terminals with clamping straps (e.g. as per
DIN 46282), the conductors must be inserted
so that approximately the same clamping
height results on both sides of the bar.
Individual conductors must therefore be bent
into a U-shape or connected with a cable lug
(DIN 46234).
This also applies to:
 the protective conductor,
 the outer ground conductor.
Both conductors can be recognized from their
color (green/yellow).
 DANGER
Electrical danger!
The terminal box must be free from
 foreign bodies,
 dirt,
 humidity.
Terminal box cover and cable entries must be
tightly closed so as to make them dustproof and
waterproof. Check for tightness at regular
intervals.
 DANGER
Electrical danger!
Clearance between bare live parts and between
bare live parts and ground:
at least 5.5 mm [0.217"] (at a nominal voltage
of U
N
≤ 690V).
There may be no protruding wire ends!