Lower connecting terminals
Input
signal,
analogue
output,
sensor
supply
and
supply
voltage
are
connected
to
the
lower
connecting
terminal.
Terminal
1-7:
Input
signals
The
sensor
is
connected
to
these
terminals.
A
6-wire
sensor
can
be
connected
to
the
input
of
the
IPW5
.
8
5. Electrical connection
Sensor
1
2
3
4
5
6
7
Strain gauge sensor
Sense+
Signal-
Sense-
Supply-
Shield
Sensor
1
2
3
4
5
6
7
Strain gauge sensor
Signal-
Supply-
Supply-
CAL
If
the
sensor
only
has
a
4-wire
connection,
terminals
1
and
2
or
terminals
5
and
6
can
be
bridged
directly
to
the
display.
However,
as
a
rule,
this
generally
leads
to
a
loss
of
accuracy
through
the
line
impedance.
At
the
input
of
the
IPM5
,
a
4-wire
sensor
can
be
connected
with
a
calibration
wire
(CAL).
Mass pressure sensors, which frequently have an additional wire for the artificial unbalance
(80%) of the bridge, can be automatically calibrated via terminal 7.
Examples of the connections for various sensors can be found in section
“
Connection
examples”
.
Terminal 8-9: Analog output
These terminals supply the signal of the analog output. Via a DIP switch on the back side of the
device, a voltage signal of 0-10 VDC or a current signal of 0/4-20 mA can be measured.
8
9
Analog
Analog output -
Terminal 10-12: Digital input
These terminals are used to control the digital input. With this, various functions (e.g. taring) can
be triggered in the unit. With a potential-free external contact, terminals 10 and 12 are simply
connected. With an active output, terminal 11 serves as reference point. The digital input is
designed for an input signal of 24 VDC.
10
11
12
Contact
Contact supply -
Digital input
V
mA DIP switch
