M-system M2VS Instruction Manual page 2

INSTALLATION
Loosen the ixing screw at the front of the unit in order to
separate the body from the base socket.
DIN RAIL MOUNTING
Set the base socket so that
its DIN rail adaptor is at
the bottom. Position the
upper hook at the rear side
of base socket on the DIN
rail and push in the lower.
When removing the socket,
push down the DIN rail
adaptor utilizing a minus
screwdriver and pull.
WALL MOUNTING
Refer to "EXTERNAL DIMENSIONS."
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the con-
nection diagram on the side of the unit.
When an input resistor is provided with the module, attach
it together with input wiring to the input screw terminals.
+ 1
*
INPUT R
– 4
*Input shunt resistor attached for current input.
EXTERNAL DIMENSIONS
21.5 (.85)
10 (.39)
DIN Rail
35mm wide
Spring Loaded
DIN Rail Adaptor
9 +
OUTPUT
12 –
13
U(+)
POWER
14
V(–)
unit: mm (inch)
84 (3.31)
114 (4.49)
• When mounting, no extra space is needed between units.
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Power input voltage: Check voltage across the terminal
13 – 14 with a multimeter.
3) Input: Check that the input signal is within 0 – 100% of
the full-scale.
4) Output: Check that the load resistance meets the de-
scribed specifications.
ADJUSTMENT PROCEDURE
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali-
bration.
For matching the signal to a receiving instrument or in case
of regular calibration, adjust the output as explained in the
following.
HOW TO CALIBRATE THE OUTPUT SIGNAL
Use a signal source and measuring instruments of suficient
accuracy level. Turn the power supply on and warm up for
more than 10 minutes.
1) ZERO: Apply 0% input and adjust output to 0%.
2) SPAN: Apply 100% input and adjust output to 100%.
3) Check ZERO adjustment again with 0% input.
4) When ZERO value is changed, repeat the above proce-
dure 1) – 3).
MAINTENANCE
Regular calibration procedure is explained below:
CALIBRATION
Warm up the unit for at least 10 minutes. Apply 0%, 25%,
50%, 75% and 100% input signal. Check that the output
signal for the respective input signal remains within accu-
racy described in the data sheet. When the output is out of
tolerance, recalibrate the unit according to the "ADJUST-
MENT PROCEDURE" explained earlier.
6 (.23)
DIN RAIL
4 1
35mm wide
8 5
2–4.2x5
(.17x.20)
MTG HOLE
6 (.24) deep
12 9
8–M3
SCREW
14 13
15 (.59)
[4 (.16)] 23 (.91)
M2VS
TERMINAL ASSIGNMENTS
INPUT RESISTOR
(model: REM2)
4 1
8 5
12 9
14 13
Input shunt resistor attached
for current input.
EM-5018 Rev.10 P. 2 / 2