M5DY
INSTRUCTION MANUAL
CURRENT LOOP SUPPLY
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.
M5DY
MODEL
choose a surge protector with its maximum surge voltage
40V or less between lines. Recommended M-System model: MDP-D24.
■ AND ....
•The unit is designed to function as soon as power is supplied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
COMPONENT IDENTIFICATION
Body
Terminal Cover
Spec. Marking
Power LED
Span Adj.
Zero Adj.
POINTS OF CAUTION
■ CONFORMITY WITH EC DIRECTIVES
•The equipment must be mounted inside a panel.
•Insert a noise filter for the power source, input and output connected to the unit. COSEL Noise Filter Model
NAC-06-472, TDK Noise Filter Model ZCAT 3035-1330 or
equivalent is recommended.
•The actual installation environments such as panel configurations, connected devices, connected wires, may affect 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 conformity.
■ POWER INPUT RATING & OPERATIONAL RANGE
•Locate the power input rating marked on the product and
confirm its operational range as indicated below:
85 – 264V AC rating: 85 – 264V, 47 – 66 Hz, approx. 3VA
24V DC rating: 24V ±10%, approx. 2W
INSTALLATION
Set the unit so that its DIN rail adapter is at the bottom.
■ 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.
DIN Rail
A
■ GENERAL PRECAUTIONS
•Before you remove the unit or mount it, turn off the power
supply and 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 -5 to +55°C
(23 to 131°F) with relative humidity within 0 to 90% RH
in order to ensure adequate life span and operation.
■ WIRING
•Do not install cables (power supply, input and output)
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.
•Install lightning surge protectors for those wires connected to remote locations. For 24V DC power supply line,
B
■ REMOVING THE UNIT
A)Push down the DIN rail adaptor using a minus screwdriver.
B)Pull out the lower part of the unit.
C)Remove the upper part from the DIN rail.
C
B
Spring Loaded
DIN Rail Adaptor
A
EM-2476 Rev.6
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M5DY
TERMINAL CONNECTIONS
CHECKING
Connect the unit as in the diagram below or refer to the connection diagram on the front of the unit.
1) Terminal wiring: Check that all cables are correctly connected according to the connection diagram.
2) Power input voltage: Check voltage across the terminal
7 – 8 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 described specifications.
■ EXTERNAL DIMENSIONS unit: mm (inch)
7.3 (.29)
8–M3.5 SCREW
1 2
DIN RAIL
35mm wide
94 (3.70)
35.4 (1.39)
3 4
5 6
3 (.12)
7 8
25 (.98)
41 (1.61)
[3.3 (.13)]
• When mounting, no extra space is needed between units.
■ CONNECTION DIAGRAM
2-WIRE
TRANSMITTER
+
+ 3
5 +
–
– 4
6 –
+ 1
7 U(+)
– 2
8 V(–)
MONITOR V
(1 – 5V DC)
■ When Used as DC Supply
+
2-WIRE
XMTR –
OUTPUT
POWER
■ When Used as Isolator
+ 3
– 4
– 4
– 2
INPUT
249.5Ω
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any calibration.
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 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 procedure 1) – 3).
MAINTENANCE
Regular calibration procedure is explained below:
+ 3
+ 1
ADJUSTMENT PROCEDURE
■ 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 accuracy described in the data sheet. When the output is out of
tolerance, recalibrate the unit according to the “ADJUSTMENT PROCEDURE” explained earlier.
+ 1
– 2
249.5Ω
M-SYSTEM WARRANTY
M-System warrants such new M-System product which it manufactures to be free from defects in materials and workmanship
during the 36-month period following the date that such product was originally purchased if such product has been used under
normal operating conditions and properly maintained, M-System’s sole liability, and purchaser’s exclusive remedies, under this
warranty are, at M-System’s option, the repair, replacement or refund of the purchase price of any M-System product which is
defective under the terms of this warranty. To submit a claim under this warranty, the purchaser must return, at its expense, the
defective M-System product to the below address together with a copy of its original sales invoice.
THIS IS THE ONLY WARRANTY APPLICABLE TO M-SYSTEM PRODUCT AND IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. M-SYSTEM SHALL HAVE NO LIABILITY FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES
OF ANY KIND WHATSOEVER.
M-System Co., Ltd., 5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN, Phone: (06) 6659-8201, Fax: (06) 66598510, E-mail: [email protected]
EM-2476 Rev.6
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