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 60V DC/15W at the maxi-
mum. For maximum relay life with inductive loads, ex-
ternal protection is recommended.
When used with a multi-channel installation base (e.g.
M8BS1-16), the ratings derated as following.
Terminal block type
: 30V DC @ 0.25A
Cable connector type
: 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.
M8SED1
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-5380 P. 2 / 2
