Signal converters / relays series L0 pages

C-mac

®

Signal converters / relays series L

Non-programmable signal converters / monitoring relays
Current, voltage, temperature or resistor inputs
Built-in exitation supply for transducer
Current, voltage or relay output
Galvanic separation, supply - input - output
DC supply or AC supply voltages up to 230 VAC
Made in accordance with the
and EMC regulations
The C-mac® converters, series L, consists of 3 different basic units, each of them available in a number of
variants:

Block diagram, converter unit:

relay output.

• LV10 has voltage input and current, voltage or
relay output.

• LM30 has temperature input (3-wire Pt 100) and
current, voltage or relay output.

1(16)

PPSSS
1 2 1 2 3

• LC10 has current input and current, voltage or

2(15)
6(11)

+
-

5(12)
4(13)

7(10)
8(9)

• LM50 has resistor or potentiometer input and
current, voltage or relay output.
The signal converters convert a standard or nonstandard analogue input signal to a standard analogue
output signal, selectable between 0-20 mA, 4-20 mA,
0-10 V or 2-10 V, and because all units have galvanic
isolation between suppy, input and output, a safe and
effective isolation between the input signals and the
equipment, which is connected to the output of the
converters, is ensured.
All connections to the converter module are placed on
one terminal block, and therefore it is possible to install 2 independent converters in the same housing,
thereby reducing the required space in the control
panel, where the modules are installed.
Optionally, the converters can be supplied with an input signal monitor with isolated transistor output. This
output is only activated, if the input signal is within the
specified metering range.
Note:
If the converter is supplied with this monitor, only one
converter can be installed in the housing.
The monitoring relays operate with the same input signals, but instead of having an analogue output signal,
the modules are supplied with 2 relay outputs, where
setpoints and relay functions are user adjustable. All
monitoring relays have input signal monitor with
transistor output, and only one module can be installed
in each housing.

Connections:
1-2:supply
4: input GND
5: input +
6: exitation +
(LC10 and LV10)
6: cable comp.
(LM30)
7: output +
8: output -

Note:
The numbers in brackets refer to unit 2, if 2 converters
are installed in the same housing.

Block diagram, input monitor/relay output option:
11
9

+

10

-

REL 1

12
13

REL 2

15
16

Connections:
9: monitor +
10: monitor 11: relay 1, NC
12: relay 1, com
13: relay 1, NO
15: relay 2, com
16: relay 2, NO

Converters with relay output are always supplied with
input signal monitor.
With relay output option, there is no analogue output.
For input monitor option without relay output,
connections 12-16 are left open.

Comadan
Produktion a/s

2-1