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
7 – 8 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) Output load: Check that the output load is 380V
AC/120VA or 125V DC/30W at the maximum (≤ 0.5A for
CE marking). For use with inductive load, external pro-
tection is recommended.
Alarm Trip Operation
Terminal No. in parentheses
0
50
100
▲
Input
(%)
Lo Setpoint
▲
Hi Setpoint
Hi Output
(9–10)ON
Lo Output
(1–2)ON
(1–3)ON
(9–11)ON
Trip Operation in Power Failure
: Terminals 1 – 2, 9 – 11 turn ON.
ADJUSTMENT PROCEDURE
■
HOW TO ADJUST ALARM SETPOINTS
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) Turn the front dial to an approximate position for the
setpoint.
2) Vary simulated input signal around the setpoint and con-
firm relay operation and set.
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 trip point remains within the
accuracy described in the data sheet.
• Lo Setpoint
Decrease the input signal from a value higher than the
setpoint and check that the trip point remains within the
accuracy described in the data sheet.
When the setpoints 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.
KSE-x2
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-3609-B Rev.2 P. 3 / 3
