R3-CT4A
P. 1 / 2 EM-8443 Rev.1
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
the contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■ PACKAGE INCLUDES:
AC current input module ........................................... (1)
■ MODEL NO.
Check that model No. described on the specification label is
exactly what you ordered.
■ INSTRUCTION MANUAL
This manual describes necessary points of caution when you
use this product, including installation, connection and basic
maintenance procedures.
POINTS OF CAUTION
■ UNPLUGGING THE UNIT
• Before you remove the unit from its base or mount it, turn
off the power supply for safety.
INSTRUCTION MANUAL
MODEL R3-CT4A
AC CURRENT INPUT MODULE
(4 points, isolated, clamp-on current sensor type CLSA use)
COMPONENT IDENTIFICATION
■ ENVIRONMENT
• Indoor use
• When heavy dust or metal particles are present in the air,
install the unit inside proper housing with sufficient ventila-
tion.
• Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -10 to +55°C
(14 to 131°F) with relative humidity within 30 to 90% RH in
order to ensure adequate life span and operation.
■ WIRING
• Do not install cables (power supply, input and output) close
to noise sources (relay drive cable, high frequency line, etc.).
• Do not bind these cables together with those in which noises
are present. Do not install them in the same duct.
■ AND ....
• The unit is designed to function as soon as power is
supplied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data sheet.
•Conversion Rate: SW3
SW CONVERSION RATE
80 ms (*)40 ms 20 ms 10 ms
SW3-1 OFF ON OFF ON
SW3-2 OFF OFF ON ON
(*) Factory setting
1
11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
ON
8
7
6
5
4
3
2
1
SW1SW2
ON
8
7
6
5
4
3
2
1
SW3
ON
4
3
2
1
■FRONT VIEW ■SIDE VIEW
ERR LED
RUN LED
Conv.
Rate
Input 2 (SW1)
or
Input 4 (SW2)
Range
Input 1 (SW1)
or
Input 3 (SW2)
■SIDE DIP SW
•Input Range: SW1, SW2
INPUT 1 (SW1) INPUT 2 (SW1)
INPUT 3 (SW2) INPUT 4 (SW2) RANGE
12345678
OFF OFF OFF OFF OFF OFF OFF OFF CLSA-50
(*)
ON OFF OFF OFF ON OFF OFF OFF CLSA-30
OFF ON OFF OFF OFF ON OFF OFF CLSA-12
ON ON OFF OFF ON ON OFF OFF CLSA-08
■STATUS INDICATOR LED
RUN indicator: Bi-color (red/green) LED;
Red when the bus A operates normally;
Green when the bus B operates normally;
Amber when both buses operate normally.
ERR indicator: Bi-color (red/green) LED;
Red with the input abnormality;
Green in normal operating conditions.
