MG R7M-RR8 User manual

EM-7803-T Rev.3 P. 1 / 4
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
INSTRUCTION MANUAL
BEFORE USE ....
Thank you for choosing us. Before use, please check con-
tents 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:
Remote control relay control module .................................(1)
■MODEL NO.
Confirm Model No. marking 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.
POINTS OF CAUTION
■POWER INPUT RATING & OPERATIONAL RANGE
• Locate the power input rating marked on the product and
confirm its operational range as indicated below:
24V AC rating: 24V ±10%, 50/60 Hz, approx. 140mA
24V DC rating: 24V ±10%, approx. 60mA
■GENERAL PRECAUTIONS
• Before you remove the unit or mount it, turn off the power
supply and output signal for safety.
■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.
■AND ....
• The unit is designed to function as soon as power is sup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
REMOTE CONTROL RELAY CONTROL MODULE, 8 points
(Modbus 115.2 kbps) MODEL R7M-RR8

R7M-RR8
EM-7803-T Rev.3 P. 2 / 4
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
COMPONENT IDENTIFICATION
■ SIDE VIEW ■ FRONT VIEW
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
ERR RD
RUN SD
PWR X10 X1
NODE ADD. B.RATE
12345678
01234567
4567
123
10 11 12 13
2341
15 16 17 18
7896
14
5
(A) Status Indicator LED
(B) Node Address Setting Rotary SW
(C) Baud Rate Setting Rotary SW
(D) Operating Mode Setting DIP SW (SW1)
(E) PC Configurator Jack
(F) I/O Status Indicator LED
(G) Modbus, Power Supply Terminals
(H) Output Terminals
( I ) Terminating Resistor SW
(A)
(G) (H)
(B) (C) (D) (E) (F)
01234567
CNFG.
INPUT OUTPUT
(I)Terminating Resistor SW
TERM
ON OFF
■STATUS INDICATOR LED
ID COLOR FUNCTION
PWR Red Turns on when the internal 5V is supplied
normally.
RUN Red Turns on when the refresh data is received
normally.
ERR Red
Turns on when the received data is abnormal.
SD Red Turns on when the module is transmitting.
RD Red Turns on when the module is receiving.
■NODE ADDRESS
Node Address is selected between 1 and 99 in decimal. The
left switch determines the tenths place digit, while the right
switch does the ones place digit of the address.
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
Node Address Setting (x1)
Factory setting : 00
Node Address Setting (x10)
■BAUD RATE
Baud Rate is selected with the rotary switch.
5
4
3
2
1
0
9
8
7
6
Baud Rate Setting
0: 38.4 kbps
1: 19.2 kbps
2: 9600 bps
3: 4800 bps
4: 2400 bps
5: 1200 bps
6: 14.4 kbps
7: 28.8 kbps
8: 57.6 kbps
9: 115.2 kbps
■OPERATING MODE
• Extension (SW1-1, 1-2)
SW1-1 SW1-2 EXTENSION
OFF OFF No extension (*)
ON OFF Discrete input 8 or 16 points
OFF ON Discrete output 8 or 16 points
(*) Factory setting
Note : Be sure to set unused SW1-3 through 1-8 to OFF.
■PC CONFIGURATOR
The following parameters can be set with using PC Configu-
rator Software.
• Modbus parameters: Parity, bit length, stop bit
■I / O STATUS INDICATOR LED
Output and feedback input status are indicated with LED.
ON: LED ON
OFF: LED OFF
■POWER SUPPLY, MODBUS TERMINAL ASSIGNMENT
4
DA
567
123
DG
U( + )V( – )
DB SLD FG
(1) DB –
(2) SLD Shield
(3) FG FG
(4) DA –
(5) DG –
(6) U(+) Power input
(7) V(–) Power input
■OUTPUT TERMINAL ASSIGNMENT
10
NC
11
Y0
12
Y1
1
NC
2
C0
3
C1
13
Y2
4
C2
14
Y3
5
C3
15
Y4
6
C4
16
Y5
7
C5
17
Y6
8
C6
9
C7
18
Y7
NO. ID FUNCTION NO. ID FUNCTION
1 NC No connection 10 NC No connection
2 C0 Common 11 Y0 Output 0
3 C1 Common 12 Y1 Output 1
4 C2 Common 13 Y2 Output 2
5 C3 Common 14 Y3 Output 3
6 C4 Common 15 Y4 Output 4
7 C5 Common 16 Y5 Output 5
8 C6 Common 17 Y6 Output 6
9 C7 Common 18 Y7 Output 7
■TERMINATING RESISTOR
To use the terminating resistor, turn the switch ON, and
OFF to invalidate.
(Factory setting OFF)
■EXTENSION MODULE
Combinations with all extension modules are available.

R7M-RR8
EM-7803-T Rev.3 P. 3 / 4
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
I/O DATA DESCRIPTION
■OUTPUT
BIT CHANNEL D ATA S TAT E
0Y00 OFF Output
1 ON Output
1Y10 OFF Output
1 ON Output
2Y20 OFF Output
1 ON Output
3Y30 OFF Output
1 ON Output
4Y40 OFF Output
1 ON Output
5Y50 OFF Output
1 ON Output
6Y60 OFF Output
1 ON Output
7Y70 OFF Output
1 ON Output
8 — — Invalid
9 — — Invalid
10 — — Invalid
11 — — Invalid
12 — — Invalid
13 — — Invalid
14 — — Invalid
15 — — Invalid
■FEEDBACK INPUT
BIT CHANNEL D ATA S TAT E
0Y00 OFF Output
1 ON Output
1Y10 OFF Output
1 ON Output
2Y20 OFF Output
1 ON Output
3Y30 OFF Output
1 ON Output
4Y40 OFF Output
1 ON Output
5Y50 OFF Output
1 ON Output
6Y60 OFF Output
1 ON Output
7Y70 OFF Output
1 ON Output
8 — — Invalid
9 — — Invalid
10 — — Invalid
11 — — Invalid
12 — — Invalid
13 — — Invalid
14 — — Invalid
15 — — Invalid
TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
■EXTERNAL DIMENSIONS unit: mm (inch)
4567
123
10 11 12 13
2341
15 16 17 18
789 6
14
5
30 (1.18) [5 (.20)]
3 (.12)5.5 (.22)
DIN RAIL
35 mm wide
54 (2.13)
17 (.66)
50 (1.97) 18.5 (.73)
115 (4.53)
7–M3 SCREW
TERMINALS
for Modbus, POWER
18–M3 SCREW
TERMINALS
for OUTPUT
6 (.24) 6 (.24)

R7M-RR8
EM-7803-T Rev.3 P. 4 / 4
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
■CONNECTION DIAGRAM
Caution: FG terminal is NOT a protective conductor terminal.
11
13
2
4
3
14
7
5
15
17
16
8
6
18
9
Y0
Y1
C1
Y2
C2
Y3
C3
Y4
C4
Y5
C5
Y6
C6
Y7
C7
C0
12
4
1
2
5
3
6
7
DA
DB
DG
SLD
FG
U（＋）
V（−）
EXTENSION CONNECTOR
■Output Connection Example
11
2
C0
Y0
9
C7
18
Y7
Remote
Control
Transformer
blue
white
Remote
Control
Relay
red
blue
Remote
Control
Relay
red
blue
Remote Control
Switch
red
white
*1
*1. Maximum four remote control switches can be connected in parallel.
COMMUNICATION CABLE CONNECTIONS
■MASTER CONNECTION
Tx+/Rx+
Tx–/Rx–
SG
Rx+
Rx–
Host PC
DA
DB
DG
SLD
FG
Remote Unit
DA
DB
DG
SLD
FG
Remote Unit
TERMINATOR TERMINATOR
Be sure to connect the terminating resistor included in the product package to the unit at both ends of transmission line.
The terminator must be connected across DA and DB.
The Host PC can be located other than at the extreme ends of transmission line.
WIRING INSTRUCTIONS
■SCREW TERMINAL
Torque: 0.5 N·m
■SOLDERLESS TERMINAL
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable.
Applicable wire size: 0.25 to 1.65 mm2(AWG 22 to 16)
Recommended manufacturer: Japan Solderless Terminal
MFG. Co., Ltd, Nichifu Co., Ltd
6 (.24) max
3.3 (.13) max
mm (inch)