M2SED
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-5042 Rev.9 P. 3 / 3
WIRING INSTRUCTIONS
■
SCREW TERMINAL
Torque: 0.8 N·m
■
SOLDERLESS TERMINAL
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable.
Applicable wire size: 0.25 to 1.65 mm
2
(AWG 22 to 16)
Recommended manufacturer: Japan Solderless Terminal
MFG.Co.Ltd, Nichifu Co.,ltd
6 (.24) max
3.3 (.13) max
mm (inch)
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
10 – 11 with a multimeter.
3) Input: Check that the input signal is within 0 – 100% of
the full-scale.
4) Alarm operations: Check the alarm operations referring
to the figure below.
5) Check that the output load is 250V AC/600VA or 125V
DC/150W at the maximum. For maximum relay life with
inductive loads, external protection is recommended.
0
50
100
▲
Input
(%)
Setpoint 2
▲
Setpoint 1
Output 1
(5–7)ON
Output 2
(3–9)ON
(3–6)ON
(5–8)ON
Alarm Trip Operation
Terminal No. in parentheses
Trip Operation in Power Failure
: Terminals 3 – 9 and 5 – 8 turn on.
SETPOINT ADJUSTMENTS
Turn the thumbwheel switches until desired figures in per-
cent are shown. Output 1 is for Hi trip, while Output 2 is
for Lo. Monitor LED turns on when the coil is energized
([input] > [setpoint] for Output 1, [input] < [setpoint] for
Output 2).
MAINTENANCE
Regular calibration procedure is explained below:
■
CALIBRATION
Warm up the unit for at least 10 minutes.
• Hi Alarm
Increase the input signal from a value lower than the set-
point and check that the relay trips at the setpoint.
• Lo Alarm
Decrease the input signal from a value higher than the
setpoint and check that the relay trips at the setpoint.
When the setpoints are shifted, 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.
