Elmo Rietschle 2BH1002-*AA53 series, Operating Instructions Manual, Page: 16 / 30

Installation and Commissioning
610.44431.40.000 16 / 30 © Gardner Denver Deutschland GmbH
Lead colour Symbol Description Level
Cable
old version Cable
new version
+U
B
DC operating voltage 24 V (max. 28 V) pink red
Gnd
DC operating voltage,
reference potential for all signals 0 V
yellow black
n
des
Speed reference value:
Reference value of the desired speed of
the G-BH100. 0 ... 10 V DC green green
n
act
Frequency output representing the actual
speed:
open collector signal which must be wired
to an external pull-up resistor.
Output frequency / motor speed ratio:
1 Hz = 10 min
-1
Open collector
max. 24 V / 10 mA blue blue
A white white
B
Control signals A and B are digital inputs.
Broad voltage-range input compatible with
TTL / PLC signals.
In all four possible combinations:
A B Function
0 0 Motor disabled (no current)
0 1 CCW rotation
1 0 CW rotation
1 1 Motor disabled
Low (0): < 0.5 V DC
High (1): > 4 V DC
max. 30 V DC
grey grey
-- not connected -- brown --
-- not connected -- red --
In order to meet the requirements bearing on
electromagnetic compatibility an EMI filter
from Messrs CORCOM, Type 6ETI F7003, 6A,
must be connected in series with the integrated-
electronics type G-BH100. The connecting cable
between the EMI filter and the G-BH100 must
have a length of
at maximum 0.5 m.
i
IMPORTANT!
The main or operating direction of
rotation of the G-BH100 is the
counter-clockwise rotation , given
by the arrow indicating the direction
of rotation on the pump lid.
Only with the counter-clockwise rota-
tion the nominal values will be achie-
ved.
Clockwise rotation is only permissi-
ble 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 6A) in
the 24-V supply lead (+U
B
).