M-system M6 Series User manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-7905 Rev.5 P. 1 / 3
INSTRUCTION MANUAL
INPUT LOOP POWERED ISOLATOR MODEL M6NSN
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■PACKAGE INCLUDES:
Signal conditioner ...............................................................(1)
■MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
POINTS OF CAUTION
■CONFORMITY WITH EU DIRECTIVES OR UL
•The equipment must be mounted inside a panel.
•The actual installation environments such as panel con-
figurations, connected devices, connected wires, may af-
fect the protection level of this unit when it is integrated
in a panel system. The user may have to review the CE
requirements in regard to the whole system and employ
additional protective measures to ensure the CE conform-
ity.
•Install lightning surge protectors for those wires connect-
ed to remote locations.
■GENERAL PRECAUTIONS
•Before you remove the unit or mount it, turn off the input
signal for safety.
■ENVIRONMENT
•Indoor use.
•When heavy dust or metal particles are present in the
air, install the unit inside proper housing with sufficient
ventilation.
•Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.
•Environmental temperature must be within -20 to +55°C
(-4 to +131°F) with relative humidity within 30 to 90%
RH in order to ensure adequate life span and operation.
■WIRING
•Do not install cables close to noise sources (relay drive
cable, high frequency line, etc.).
•Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.
■AND ....
•The unit is designed to function as soon as the input sig-
nal is supplied, however, a warm up for 10 minutes is re-
quired for satisfying complete performance described in
the data sheet.
COMPONENT IDENTIFICATION
Body
Front Cover
DIN Rail Adaptor
Specifications
■FRONT VIEW (with the cover open)
Channel 2
Span Adj.
Channel 1
Span Adj.

M6NSN
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-7905 Rev.5 P. 2 / 3
NSTALLATION
Set the unit so that its DIN rail adapter is at the bottom. When the unit is installed to an Installation Base (model M6NBS),
refer to its instruction manual.
■MOUNTING THE UNIT ON A DIN RAIL
A)Hang the upper hook at the rear side of unit on the DIN
rail.
B)Push in the lower in keeping pressing the unit to the DIN
rail.
ADIN Rail
B
■REMOVING THE UNIT
A)Pull down the DIN rail adaptor using a minus screwdriv-
er.
B)Pull out the lower part of the unit.
C)Remove the upper part from the DIN rail.
CB
A
DIN Rail Adaptor
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram on the side of the unit.
■EXTERNAL DIMENSIONS unit: mm (inch)
102 (4.02)
7.5 (.30)
DIN RAIL HOOK
102 (4.02)
[1 (.04)]
8–M3
SCREW TERMINAL
WIRE INSERTION ANGLE
: approx. 35°
SCREWDRIVER
*
INSERTION ANGLE
: approx. 55°
SCREWDRIVER
INSERTION ANGLE
: approx. 40°
DIN RAIL
35mm wide
5678
1234
• When mounting, no extra space is needed between units.*Screwdriver stem diameter: 6 mm (.24”) or less

M6NSN
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-7905 Rev.5 P. 3 / 3
■CONNECTION DIAGRAM
+
–
OUTPUT
5
6
+
–
INPUT
1
2
+
–
OUTPUT
7
8
+
–
INPUT
3
4
Channel 1
Channel 2
WIRING INSTRUCTIONS
■SCREW TERMINAL
Torque: 0.5 N·m
■SOLDERLESS TERMINAL unit: mm (inch)
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable.
Solderless terminals with insulation sleeve do not fit.
Applicable wire size: 0.2 – 2.5 mm2
3.2 (.13) dia.
4 min.
(.16)
5.8 max.
(.23)
5.5 max.
(.22)
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Input: Check current with an ammeter. Be sure that the
connected transmitter allows the unit’s load value [250 Ω
+ output load resistance].
3) Output: Check that output load is within the permissible
limit of 600 Ω.
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 sufficient
accuracy level. Turn the input signal on and warm up for
more than 10 minutes.
1) SPAN: Apply 100% input and adjust output to 100%.
MAINTENANCE
Regular calibration procedure is explained below:
■CALIBRATION
Warm up the unit for at least 10 minutes. Apply 25%, 50%,
75% and 100% input signal. Check that the output signal
for the respective input signal remains within accuracy de-
scribed in the data sheet. When the output is out of toler-
ance, recalibrate the unit according to the “ADJUSTMENT
PROCEDURE” explained earlier.
LIGHTNING SURGE PROTECTION
M-System offers a series of lightning surge protector for
protection against induced lightning surges. Please contact
M-System to choose appropriate models.