Description; Method Of Operation; Block Diagram - Phoenix Contact MCR-S-1-5-UI-DCI Manual Del Usuario

2. Description

The MCR-S-...-DCI, active current transducers convert direct, alternating and distorted 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 (MCR-S-10-50-...-DCI) to analog
standard signals.
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 swit-
ching output (80 mA) and a relay switching output (2 A).

2.1. 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.
2.2. Versions
This package insert is valid for the following types of current transducers:
Type
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
1)
Configuration is done using the order key following user specifications.
2)
The module is supplied in the standard configuration.

3. Block diagram

10A
5
5A
6
1A
7
8
IN
1
12
2
11
3
14
4
NC
OUT
MCR-S-1-5-...
Order No. Measuring range
2814634
2814715
2814650
2814731
2814647
2814728
2814663
2814744
IN
1
12
2
11
3
14
4
NC
OUT
MCR-S-10-50-...
Threshold value function
0...0,2 A
to
0...11 A
0...9,5 A
to
0...55 A
DAC
ADC
µC
DAC
Po
wer
no
no
yes
yes
no
no
yes
yes
OUT
I
9
O UT I
10
O UT U
11 GND 2
U
12 GND 2
13
24VDC
=
14
GND 1
15 SW
16 GND 1
1
)
2
)
1
)
2
)
1
)
2
)
1
)
2
)
17