MCS 1000 Series
Electrical connection of the MCS
HYDAC FILTER SYSTEMS GMBH
en(us)
Page 40 / 76
BeWa MCS1000 3435427f V130 en-us 2012-06-15.doc
2012-06-15
Connecting cable wires
To prevent a ground loop, connect the shield of the connector cable only if the
MCS1000 is not grounded or not sufficiently connected to the PE conductor.
Example: circuit diagram with two power supplies:
-
+
1
2
3
4
5
6
7
8
Schirm / Shield / Blindage
9..36 V DC
max. 40 V DC
PC
HSI
S2
S1
weiss / white / blanc
green
rosa / pink / rose
blau / blue / bleu
grau / grey / gris
braun / brown / brun
gelb / yellow / jaune
rot / red / rouge
USB
RS-485
Converter
GND
GND
GND
=
=
1
7
6
5
4
3
2
Schirm
Shield
Blindage
8
R
1k≥
R
1
k
≥
Pu
llu
p
Pu
llu
p
U
M2
U
M1
Lead voltages U
M1
and U
M2
as well as the load resistances and bridges via a
separate external terminal strip.
Note that the voltage U may be 40 V DC at most and the current I 1.5 A at most.
Use for the pull-up resistance
≥
1k
Ω
You can find more possible examples in the chapter "Examples of connection".
Using several supply voltages makes it necessary to define the following terms for
error analysis:
Designation
Description
Operation voltage
Voltage for operating the MCS (electronics, coil system).
Measurement
voltage
Voltage U
M1/2
at switching output 1/2 for superordinate
controllers.
Signal value
Measurement voltage on = high
Measurement voltage off = low
