MG R3-CT4B Instruction Manual

INSTRUCTION MANUAL
AC CONTACT INPUT MODULE

BEFORE USE ....

Thank you for choosing us. Before use, please check contents
of the package you received as outlined below.
If you have any problems or questions with the product,
please contact our sales office or representatives.
■ PACKAGE INCLUDES:
AC contact input module ................................................... (1)
■ MODEL NO.
Confirm that the model number described on the product to
be 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.
FRONT VIEW
RUN LED
ERR LED

POINTS OF CAUTION

■ HOT SWAPPABLE MODULES

• Pin Assignment
• Replacing the module does not affect other modules on
B A
20 20
the same base. Thus, the module can be replaced while
the power is ON. However, replacing multiple modules
at once may greatly change live voltage levels. We highly
recommend to replace them one by one.

■ GENERAL PRECAUTIONS

• DO NOT set the switches on the module while the power
is supplied. The switches are used only for maintenance
B A
without the power.
1 1

■ ENVIRONMENT

• Indoor use.
• When heavy dust or metal particles are present in the
air, install the unit inside proper housing with sufficient
ventilation.
• 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 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.

INSTALLATION

Use the Installation Base (model: R3-BSx).
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
(Di 16 points)
1 9
2 10

Status Indicator LED

3 11
4 12
5 13
6 14
7 15
8 16
Input Connector
MODEL

COMPONENT IDENTIFICATION

FRONT VIEW
RUN LED
1 9
ERR LED 2 10
3 11
4 12
5 13
6 14
7 15
8 16
• Pin Assignment
B A
20 20
B A
1 1
SIDE VIEW
■ 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 excitation abnormality;
Green in normal operating conditions.
Input status indicator: Red LED; turns on with the inputs sup-
plied.

■ SIDE DIP SW

• Excitation Monitor: SW3
SW
WITH (*)
SW3-1 OFF
(*) Factory setting
• Read Rate: SW3
READ RATE (≤msec)
SW
10 (*) 1 5
SW3-2 OFF ON OFF
SW3-3 OFF OFF ON
SW3-4 OFF OFF OFF
(*) Factory setting
• Excitation Monitor Active
The input is held at the last status when the loss of excitation
is detected. The excitation must be connected across CHK
(4A/4B or 3A/3B) and COM (2A/2B or 1A/1B).
• Excitation Monitor Inactive
All input signals are turned off when the loss of excitation is detected.
R3Y-DA16B
R3Y-DA16B
Status Indicator LED
Input Connector
SW3
4
Read
3
Rate
2
Exc.
1
Monitor
ON

EXCITATION MONITOR

WITHOUT
ON
20 50 70 100 200
ON OFF ON OFF ON
ON OFF OFF ON ON
OFF ON ON ON ON
P. 1 / 2
EM-8969 Rev.2
SIDE VIEW