M-system M8SED Manuale utente
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
■POWER INPUT RATING & OPERATIONAL RANGE
• Locate the power input rating marked on the product and
confirm its operational range as indicated below:
24V DC rating: 24V ±10%, approx. 60mA
■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 0 to 55°C (32
to 131°F) with relative humidity within 30 to 95% RH in
order to ensure adequate life span and operation.
• Be sure that the ventilation slits are not covered with ca-
bles, etc.
■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 power is sup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
COMPONENT IDENTIFICATION
Output 1 Monitor LED
Output 1
Setpoint Adj.
Output 2
Setpoint Adj.
44
13
Output 2 Monitor LED
Mounting Screw
Body
Specifications
INSTALLATION
Use Installation Base (model: M8BSx).
DC ALARM
(thumbwheel switch adjustment) MODEL M8SED
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
EM-5488 Rev.2 P. 1 / 2
INSTRUCTION MANUAL
TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
■EXTERNAL DIMENSIONS unit: mm (inch)
I/O PINS
17.5 (.69)
48 (1.89)
75 (2.95)
83 (3.27)
■CONNECTION DIAGRAM
Installation Base
OUTPUT 1
6
7
8
9
10
11
+
–
OUTPUT 2
1
2
A
B
POWER
+
–
INPUT
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Power input: Check the power input voltage.
3) Input: Check that the input signal is within 0 – 100% of
the full-scale.
4) Check that the output load is 125V AC/25VA or 60V
DC/15W at the maximum. For maximum relay life with
inductive loads, external protection is recommended.
When used with a multi-channel installation base (e.g.
M8BS-16), the ratings derated as following.
Terminal block type: 125V AC @ 0.2A, 30V DC @ 0.25A
Cable connector type: 24V AC @ 50mA, 24V DC @ 50mA
ALARM TRIP OPERATION
TRIP
ACTION
OUT
CODE
POWERED UNPOWERED
INP < SET INP > SET
OUT
1
Hi 1 OFF ON OFF
Hi 2 ON OFF ON
OUT
2
Lo 1 ON OFF OFF
Lo 2 OFF ON ON
ADJUSTMENT PROCEDURE
Turn the front thumbwheel SW to indicate desired set-
points in %.
Output 1 is for high trip, while Output 2 is for low.
Monitor LED turn ON when the coil is energized; Output 1
coil is energized when the input is above the setpoint, while
Output 2 coil is when the input is below the setpoint.
Relay contact turns ON when the coil is energized with Out-
put Code 1, de-energized with Output Code 2.
MAINTENANCE
Regular calibration procedure is explained below:
■CALIBRATION
Warm up the unit for at least 10 minutes.
• Hi Setpoint
Increase the input signal from a value lower than the set-
point and check that the relay trips at the setpoint.
• Lo Setpoint
Decrease the input signal from a value higher than the
setpoint and check that the relay trips at the setpoint.
When the trip points are shifted, please contact M-System’s
Sales Office or representatives.
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.
M8SED
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
EM-5488 Rev.2 P. 2 / 2
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