Elmo Rietschle G-BH10 - Manual (Page 11)

Installation and Commissioning
© Gardner Denver Deutschland GmbH 11 / 30 610.44431.40.000
5.2 Connection
5.2.1 Electrical Connection (Motor)
WARNING!
Work on electrical installations may
be carried out by trained and author-
ised electricians only!
WARNING!
Before beginning any electrical work
on the G-BH100 or the system carry
out the following steps for both the
G-BH100 and the entire system
– switch off electricity,
– lock against restart,
–
ensure absence of electricity,
– ground and short-circuit instal-
lation,
– cover or bar adjacent live
parts.
WARNING!
The connecting terminals
– must be installed such that
they cannot be touched during
operation!
– must be surrounded by a
housing which is proof against
foreign bodies, humidity, etc.!
Consider the life expectancy of
the seals and gaskets!
–
must be separated by suffi-
cient distances (mind protrud-
ing wire ends)!
WARNING!
Ensure that no foreign bodies, hu-
midity, etc. enter the motor interior!
The G-BH100 is operated using an electronics for
speed and direction of rotation control.
Depending on where this electronics is located
(inside or outside the G-BH100), two types of the
G-BH100 are distinguished
 for external electronics (see section 5.2.1.1,
page 11):
- 2BH10 02-0AA53
 for integrated electronics (see sec-
tion 5.2.1.2, page 15):
- 2BH10 02-0AB32
- 2BH10 02-0AB22
In order to determine the type of your G-BH100
refer to the type number (MLFB) on the rating
plate.
i
IMPORTANT!
The motor of the G-BH100 including
its connecting leads must be pro-
tected against electrostatic discharge
(ESD).
Do not remove the ESD-prevention
bag surrounding the lead ends until
right before carrying out the electrical
connection (attaching the connector,
connecting to a terminal strip, or the
like)!
Carry out the electrical connection
using the appropriate ESD-
prevention equipment!
5.2.1.1 G-BH100 for external electronics
With this type the electronics is located outside
the G-BH100. It is connected via the electrical
connecting cable.
i
IMPORTANT!
The main or operating direction of
rotation of the G-BH100 is the coun-
ter-clockwise rotation, given by the
arrow indicating the direction of rota-
tion on the pump lid
(see Fig. 4, # 5, page 10).
Only with the counter-clockwise rota-
tion the nominal values will be
achieved.
Clockwise rotation is only permissible
in special cases.
In this instance the G-BH100 will not
achieve its full output.
i
IMPORTANT!
The connecting cable between the
G-BH100 and the external electron-
ics must have a length of at maxi-
mum 0.5 m!
i
IMPORTANT!
When switching off the G-Bh100 or
rapidly reducing its speed a current
feed into the mains might occur.
This can be prevented by inserting a
diode (Schottky diode, size 10A) in
the 48-V supply lead (+U
B
)
i
IMPORTANT!
Provide good cooling of the sur-
roundings of the motor and the ex-
ternal electronics (e.g. mounting on
a good thermal conductor, sufficient
ventilation)! In case of temperatures
of > 50°C, measured at the surface
of the external electronics (Drivecon-
trol VT-D), the output power of the
pump might be reduced.