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5. Connection Notes
Caution: Danger! Never work on the
machine when live!
Table 1: Selection of the input voltage range
(see also Fig. 3, page 13)
Input
Adjustment
voltage
range
(± 20 %)
[V AC]
0...370 V
(296 - 444)
0...250 V
(200 - 300)
0...170 V
(136 - 204)
0...120 V
( 96 - 144)
0... 80 V
( 64 - 96)
0... 54 V
( 43 - 65)
0... 36 V
( 28 - 43)
0... 24 V
( 19 - 29)
If the voltage signal exceeds the voltage
range given at the input signal terminal
block by more than 15 %, the input circuit
can be damaged!
12
6. ZERO/SPAN Adjustment
Observe a module warm-up time of
4 minutes before the adjustment procedure!
The module is preset in the factory to
0-24 V input and 0...10 V output.
Two potentiometers on the front of
the module (Fig. 5) are available for
adjustment:
ZERO: adjustment of the zero point
SPAN: adjustment of the end value.
a) Zero point calibration
• Connect a calibration source to the input terminal
blocks (U
and GND1) and set a voltage of 0 mV.
(1-7)
• Set the output signal value with the "ZERO" potentiometer:
Voltage output (0...10 V):
Current output (0...20 mA):
Current output (4...20 mA):
b) End value calibration
• Use the calibration source to set the maximum voltage
used in the input voltage range (Table 1).
• Set the output signal value (U
with the SPAN potentiometer.
14
Input
Jumper / position
terminal
block
1
2
3
4
5
6
7
J1 / position 1
7
J1 / position 2
factory setting
U
= 0V,
OUT
I
= 0 mA
OUT
I
= 4 mA
OUT
= 10 V or I
= 20 mA)
OUT
OUT
• Opening the device (Fig. 2)
The lock on the housing top is
released on both sides using a
screwdriver 1. The housing top
and the electronics can now be
pulled out approximately 3 cm 2.
• Jumper adjustment (Fig. 3/4)
Plug the jumpers onto the de-
sired positions for the input volt-
age (Fig. 3) and the position for
the current output (Fig. 4).
Table 2:
Selection of the stan-
dardized output signal
(Fig. 4)
Output
0...10
V
0...20 mA
4...20 mA
Next, close the housing again until
you hear it engage.
A ZERO/SPAN adjustment must
be performed each time the input
or output range is changed.
7. Technical Data
Order number
Measurement (input)
Input voltage range
Input resistance
Input voltage range
Input resistance
Adjustment:
Rated insulation voltage:
input/output
output/supply
Measurement (output)
Output signal
Fig. 5
Max. output signal
Line/load resistance
Ripple
General data
Supply voltage
Current consumption
Test voltage:
input / output
auxiliary power supply/signal
Transmission error
Frequency response
Response time
Ambient temperature range
Dimensions (W / H / D)
Conductor cross section
Housing material
Jumper Position
J2 / J3
1
J2 / J3
1
J2 / J3
2
Fig. 3
MCR-VAC-UI-0-DC
28 11 10 3
0...(370 / 250 / 170 / 120) V AC
(370 / 250 / 170 / 120) kΩ
0...(80 / 54 / 36 / 24) V AC
(80 / 54 / 36 / 24) kΩ
± 20 %
ZERO
± 20 %
SPAN
0...444 V with non-grounded circuits
0...250 V with grounded circuits
50 V
U
I
A
A
0...10 V
0...20 mA
+ 15 V
+ 30 mA
< 500 Ω
> 10 kΩ
< 50 mV
< 50 mV
SS
18.5 ... 30.2 V DC
< 45 mA
3.3 kV, 50 Hz, 1 min.
1.0 kV, 50 Hz, 1 min.
< 1.5 % from end value
45 Hz - 400 Hz
300 ms (0-90 %)
-25 °C to 60 °C
(22.5 / 99 / 114.5) mm
2
0.2 - 2.5 mm
polyamide PA non-reinforced
2
V
7 0
V
5 0
V
7 0
V
2 0
5
1
6
7
8
1
Fig.2
J2 J3
1
0-20
2
4-20
J1
1
36V
2
24V
J1
1
36V
2
24V
J2 J3
1
0-20
2
4-20
Fig. 4
13
I
A
4...20 mA
+ 30 mA
< 500 Ω
< 50 mV
SS
SS
(AWG 24-14)
15
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