ASWL2
P. 2 / 3
EM-1619 Rev.2
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connec-
tion diagram label on top of the unit.
When an input resistor is provided with the module, attach it
together with input wiring to the input screw terminals.
FRONT PANEL CONFIGURATION
• Explanations
Hi and Lo setpoint rotary switches are used to set the alarm setpoints.
The Hi and Lo LED lights turn on when the coil for each relay is energized.
• Examples
For setting the relay to trip above 80% of the full-scale input signal, set the Hi
rotary switch (x10) to "8", while the switch (x1) to "0".
U(+)
V(–)
POWER
7
14
+
–
*
INPUT
4
R
12
HI OUTPUT
11
2
1
LO OUTPUT
15
10
9
N.C.
N.O.
COM
N.C.
N.O.
COM
*
Input shunt resistor attached for current input.
CHECKING
1) Terminal wiring: Check that all cables are correctly connected
according to the connection diagram.
2) Power input voltage: Check voltage across the terminal 7
– 14 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 maximum relay
life with inductive load, external protection is recommended.
Alarm Trip Operation
T
erminal No. in parentheses
T
rip Operation in Power Failure
:
Terminals 1 – 2, 9 – 10 turn ON.
0
50
100
Input
(%)
Lo Setpoint
Hi Setpoint
Hi Output
(9–15)ON
Lo Output
(1–2)ON
(1–11)ON
(9–10)ON
6 Lo LED
5 Lo Setpoint Rotary Switch (x1%)
4 Lo Setpoint Rotary Switch (x10%)
3 Hi Setpoint Rotary Switch (x1%)
2 Hi Setpoint Rotary Switch (x10%)
1 Hi LED
HI SET
[%]
x1
x10
LO SET
[%]
x1
x10
MAINTENANCE
Regular calibration procedure is explained below:
n
CALIBRATION
Warm up the unit for at least 10 minutes.
• Hi Setpoint
Increase the input signal from a value lower than the setpoint 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 trip points are out of tolerance, contact M-System's Sales
Office or local representatives.
