M1EAXV-2
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-5995-A Rev.1 P. 6 / 6
WIRING INSTRUCTIONS FOR BASE
■
SCREW TERMINAL
Torque: 0.5 N·m
■
SOLDERLESS TERMINAL
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable.
Recommended manufacturer: Japan Solderless Terminal
MFG.Co.Ltd, Nichifu Co.,ltd (Solderless terminals with in-
sulation sleeve do not fit)
Applicable wire size: 0.25 to 1.65 mm
2
12max
6max
3max
4min
3.2 dia.
(mm)
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
19 – 20 with a multimeter.
3) Input: Check that the input signal is within 0 – 100% of
full-scale.
4) Alarm operations: Check the alarm operations referring
to the figure below.
5) Output load: Check that the output load is 250 V AC/ 120
VA or 125 V DC/30 W at the maximum.
For maximum relay life with inductive load, external pro-
tection is recommended.
LL
L
HH
H
Input
%
• Example Quad N.O. contacts (LL, L, H, HH)
Alarm Trip Operation
Trip operation in power failure
Output code 2: All relays turn OFF.
Output code 3: All relays turn ON.
Output code 5: Terminals 13 – 15, 16 – 18, 16 – 12,
1 – 7 turn ON.
0
50
100
▲
▲
▲
▲
L2
L3
L4
L1
ON
ON
OFF
ON
ON
OFF
OFF
OFF
MAINTENANCE
Regular calibration procedure is explained below:
■
CALIBRATION
Warm up the unit for at least 10 minutes.
• H (HH) Setpoint
Increase the input signal from a value lower than the set-
point and check that the relay trips at the setting value.
• L (LL) Setpoint
Decrease the input signal from a value higher than the
setpoint and check that the relay trips at the setting val-
ue.
• Input Value
Apply 0%, 25%, 50%, 75% and 100% input signal. Per-
form input fine adjustment when input value is out of
accuracy on the display.
Refer to the operating manual (EM-5995-B), when adjust-
ing with front buttons. Refer to the M1EACFG users man-
ual (EM-5994), when adjusting with M1EA Configurator
Software (model: M1EACFG). And then follow the proce-
dure shown below.
• INPUT FINE ADJUSTMENT
1) Set the input signal to 0 %, and adjust the input display
to 0 % by [80]/[180] Input Zero fine adjust.
2) Set the input signal to 100 %, and adjust the input dis-
play to 100 % by [81]/[181] Input Span fine adjust.
3) Again set the simulated input to 0 %, confirm the input
display.
4) If input display is shifted, repeat the procedure from 1) to
3).
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.
