AS4V
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-1609 Rev.15 P. 5 / 5
CHECKING
1 ) Terminal wiring: Check that all cables are correctly
connected according to the connection diagram.
2 ) Power input voltage: Check voltage across the termi-
nal 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 refer-
ring to the figure below.
5 ) Output load: Check that the output rating road is:
Output code 2 and 3: 240 V AC / 120 VA or 30 V DC /
30 W
Output code 5: 240 V AC / 600 VA or 30 V DC / 150 W
Output code 2A, 3A and 5A: 220 V DC / 30 W
For maximum relay life with inductive load, external
protection is recommended.
0
50
100
Input
(%)
LL
L
HH
H
L2 (1–2)
ON
L3 (1–3)
ON
L4 (9–11)
ON
OFF
OFF
L1 (9–10)
ON
OFF
OFF
Alarm Trip Operation
Terminal No. in parentheses
Example with quad N.O. contacts (LL, L, H, HH)
Trip Operation in Power Failure
• Output code 2, 2A: All relays turn off.
• Output code 3, 3A: All relays turn on.
• Output code 5, 5A: Terminals 1 – 3, 9 – 11 turn on.
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 H (or HH) set-
point within the setpoint accuracy described in the data
sheet.
•
L (LL) Setpoint
Decrease the input signal from a value higher than the set-
point and check that the relay trips at the L (or LL) setpoint
within the setpoint accuracy described in the data sheet.
When the setpoints are shifted, please contact M-System’s
Sales Office or representatives.
LIGHTNING SURGE PROTECTION
In order to protect the unit from lightning surges entering
through power supply cables, use of appropriate lightning
surge protectors are recommended. Please contact M-Sys-
tem.
