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Current transducers MCR-S-...-DCI
Power LED (green)
1)
Threshold value switch LED
(yellow)
Potentiometer for
threshold value
1)
suppression time
Programming
interface
R -
M C
N r.
t. -
A r
C
AD
µ C
IN
G A
5
A
6
T
1 0
SE
O FF
5 A
7
1 A
8
PO
INT
SE
T
IN
E
M
TI
1
2
1 2
3
1 1
1 4
4
N C
O U
T
Upper part of
housing slides
open for DIP switch
A P
/
N
setting
N E
IO
A T
O B
P R
A P
MCR-S-1-5-UI-SW-DCI
1)
Only for MCR-S-...-SW-DCI(-NC) versions.
1. Block diagram
5
10A
6
IN
5A
7
1A
8
IN
1
1
12
12
2
2
11
11
3
3
14
14
4
4
NC
NC
OUT
OUT
MCR-S-1-5-...
MCR-S-10-50-...
20
5. Method of operation
Connecting to the input terminal blocks (MCR-S-1-5-...-DCI), or passing the live
conductor through the current transducer (MCR-S-10-50-...-DCI) evokes a magnetic flow
in the annular strip-wound core. The density of magnetic flow is measured with the aid of
a Hall sensor and converted proportionally from the input current to a voltage (Hall
voltage). A downstream true r.m.s. converter enables DC, AC and distorted currents to be
measured. The signal is amplified for further conditioning and made available at the
output as a proportional analog signal.
6. Electrical connection and operation
6.1. Electrical connection
When operating this electric measuring transducer, the national
regulations (e.g. Germany VDE 0100 "Conditions for the erection of
power installations with nominal voltages below 1000 volts") must be
observed during installation and selection of the electrical conductors.
Pin configuration:
Connecting
Description
terminal block
1
(12) N/C contact (only threshold value module)
2
(11) Center contact (only threshold value module)
3
(14) N/O contact (only threshold value module)
4
Terminal blocks 5 - 8 only for MCR-S-1-5-...-DCI:
5
10 A input
6
5 A input
7
1 A input
8
Ground reference for 1, 5 and 10 A input
9
Current output
0
Voltage output
!
Ground reference for current or voltage output
"
Ground reference for current or voltage output
§
Operating voltage (+24 V DC)
$
Ground reference for operating voltage
%
Transistor output (only threshold value module)
&
Ground reference for transistor output (only threshold value module)
22
ENGLISH
Threshold value potentiometer
SPAN potentiometer
ZERO potentiometer
C I
C I
- D
-D
W
W
I- S
I- S
0
3
6 5
-U
- U
/5 0
6 6
1 /5
1 4
S -
-1 0
1 4
T
T
8
O U
8
O U
: 2
I
R -S
: 2
I
U T
U T
9
O
U
M C
U T
N r.
9
O
U
2
t. -
U T
C
0
O
0
O
2
DA
G N
D
A r
C
D
!
2
DA
G N
2
D
!
G N
C
G N
D
"
V D
C
2 4
"
V D
C
2 4
DA
C
§
1
AD
µ C
C
U
D
DA
§
1
$
G N
U
G N
D
$
S W
%
1
S W
we
r
D
IN
%
1
Po
&
G N
G A
we
r
G N
D
=
Po
&
=
T
SE
O FF
IN
INT
T
PO
SE
E
M
TI
1
2
1 2
3
1 1
4
1 4
N C
T
O U
S
A L
S
A L
O V
O V
P R
Cable
P R
A P
/
N
N E
feed-through
IO
A T
O B
P R
A P
Metal latch for fixing
to the mounting rail
MCR-S-10-50-UI-SW-DCI
ADC
DAC
OUT
9
µC
0
!
SPAN
DAC
"
U
§
Power
ZERO
$
=
%
SET POINT
&
TIME
2. Versions
This package insert is valid for the following types of current transducers:
Type
1)
MCR-S-1-5-UI-DCI
MCR-S-1-5-UI-DCI-NC
MCR-S-1-5-UI-SW-DCI
MCR-S-1-5-UI-SW-DCI-NC
MCR-S-10-50-UI-DCI
MCR-S-10-50-UI-DCI-NC
MCR-S-10-50-UI-SW-DCI
MCR-S-10-50-UI-SW-DCI-NC 28 14 74 4
1)
Configuration is done using the order key following user specifications.
2)
The module is supplied in the standard configuration.
3. Before start-up
When operating the electric measuring transducer, certain parts of the
module can carry dangerous voltage. Ignoring the warnings can lead to
serious injury and/or cause damage.
The MCR-S-...DCI modules should only be installed and put into
operation by qualified staff. The staff must have studied the warnings in
these operating instructions thoroughly.
Safe and trouble-free operation of this device can only be guaranteed if
Fig. 1
transport, storage and installation are carried out correctly and
operation and maintenance are carried out with care.
The measuring transducer may not be put into operation if the housing
is open.
Qualified staff as described in these operating instructions means those
persons referred to as electricians or with an electro-technical training
O UT I
as defined in VDE 0105 Part 1/DIN EN 50110-1.
O UT U
GND 2
GND 2
4. Description
24VDC
The MCR-S-...-DCI, active current transducers convert direct, alternating and distorted
GND 1
currents from 0... 0.2 A to 0...11 A (MCR-S-1-5-...-DCI) and from 0...9.5 A to 0...55 A
SW
(MCR-S-10-50-...-DCI) to analog standard signals.
GND 1
On the output side, the analog standard signals of 0(4)...20 mA, 0(2)...10 V, ±10 V,
0(1)...5 V, ±5 V with simple (e.g. 0...10 V) and inverse (e.g. 10...0 V) signal flow direction
can be used.
An option for the current transducers with threshold output (MCR-S-...-SW-DCI) is a PNP
transistor switching output (80 mA) and a relay switching output (2 A).
6.2. Start-up
Before putting this measuring transducer into operation, please ensure that the
configuration data comply with the requirement. The configuration data for a
preconfigured device are to be found on the right hand side of the housing. When using
a non-configured measuring transducer, a standard configuration that can be found in
"8. Order key" is set. Should the desired configuration not match that on the label on the
side or the standard configuration, please observe the following point, "Functional
diagram for configuration".
6.3. Functional diagram for configuration
Selecting the appropriate
the input current range and
Order No.
Measuring
range
28 14 63 4 0...0,2 A
to
28 14 71 5
0...11 A
28 14 65 0
28 14 73 1
28 14 64 7 0...9,5 A
to
28 14 72 8
0...55 A
28 14 66 3
measuring transducer
Programming
Configuring or
programming
Configuration via DIP switch
Opening the device
Configuring
measuring method
Configuring
the analog output
Fine adjustment of the
measuring transducer
no
Threshold value
output
yes
Configuring
the switching output
Functional
Threshold
pre-
value
configured
function
1)
no
no
2)
no
yes
1)
yes
no
2)
yes
yes
1)
no
no
2)
no
yes
1)
yes
no
2)
yes
yes
21
Software
package
23
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