M-system R7M-DC4G User manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp

EM-7803-BB P. 1 / 4

INSTRUCTION MANUAL

BEFORE USE ....

Thank you for choosing M-System. 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 M-System’s Sales Ofﬁce or representatives.

■PACKAGE INCLUDES:

Relay contact output 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

■CONFORMITY WITH EU DIRECTIVES

• The equipment must be mounted inside the instrument

panel of a metal enclosure.

• Altitude up to 2000 meters.

• The equipment must be installed such that appropriate

clearance and creepage distances are maintained to con-

form to CE requirements. Failure to observe these re-

quirements may invalidate the CE conformance.

• The actual installation environments such as panel con-

ﬁgurations, connected devices, connected wires, may af-

fect the protection level of this unit when it is integrated

in a panel system. The user may have to review the CE

requirements in regard to the whole system and employ

additional protective measures to ensure the CE conform-

ity.

• Install lightning surge protectors for those wires connect-

ed to remote locations.

■POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and

conﬁrm its operational range as indicated below:

24V DC rating: 24V ±10%, approx. 35mA

■GENERAL PRECAUTIONS

• Before you remove the unit or mount it, turn off the power

supply and output signal for safety.

• Before you remove the terminal block or mount it, make

sure to turn off the power supply and output signal for

safety.

• DO NOT set the switches on the module while the power

is supplied. The switches are used only for maintenance

without the power.

■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.

• Be sure to close the terminal cover for safety.

■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.

RELAY C CONTACT OUTPUT MODULE, 4 points

(Modbus) MODEL

R7M-DC4G

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp

EM-7803-BB P. 2 / 4

COMPONENT IDENTIFICATION

X10 X1

NODEADD. B.RATE

CNFG.

12345678

0123

10 11 12 13

2341

15 16 17 18

7896

ERR RD

RUN SD

PWR

4567

123

(A) (F)

(H)(G)

(B) (C) (D) (E)

■LEFT SIDE VIEW

TERM

ON OFF

(I)

(A) Status Indicator LED

(B) Station Address Setting Rotary SW

(D) Operation Mode Setting DIP SW (SW1)

(E) PC Configurator Jack

(F) Discrete Output Status Indicator LED

(G) Modbus, Power Supply Terminal

(H) Output Terminals

(I) Terminating Resistor SW

■FRONT VIEW

■STATUS INDICATOR LED

ID COLOR FUNCTION

PWR Red Turns on when the internal 5V is sup-

plied normally.

RUN Red Turns on when the data is received

normally.

ERR Red Turns on when the received data is ab-

normal. Blinks when setting is abnormal.

SD Red Turns on when the module is transmit-

ting.

RD Red Turns on when the module is receiving.

■DISCRETE OUTPUT STATUS INDICATOR LED

LED red indicators show the signal status.

ON : a contact output (NO)

OFF : b contact output (NC)

■NODE ADDRESS

Node Address is selected between 1 and 99 in decimal. The

left switch determines the tenth place digit, while the right

switch does the ones place digit of the address.

Node Address Setting (x1)

Factory setting : 00

Node Address Setting (x10)

■BAUD RATE

Baud Rate is selected with the rotary switch.

(Factory setting 0).

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

• Output at the Loss of Communication: SW1-4

SW1-4 OUTPUT AT THE LOSS OF COMMUNICATION

OFF B contact output

(Discard the last data received normally)

ON Hold the output (*)

(maintains the last data received normally)

(*) Factory setting

Note: Be sure to set unused SW1-1 through 1-3 and 1-5

through 1-8 to OFF.

■POWER SUPPLY, MODBUS TERMINAL ASSIGNMENT

567

123

DG +

24V 0V

DB SLD FG

(1) DB –

(2) SLD Shield

(3) FG FG

(4) DA –

(5) DG –

(6) +24V Power input (24V DC)

(7) 0V Power input (0V)

■OUTPUT TERMINAL ASSIGNMENT

+24V

COM0

COM1

NO. ID FUNCTION NO. ID FUNCTION

1 0V 0V 10 +24V 24V DC

2 COM0

Output common 0

11 Y0 Output 0 (NO)

3 COM0

Output common 0

12 Y1 Output 0 (NC)

4 COM0

Output common 1

13 Y2 Output 1 (NO)

5 COM0

Output common 1

14 Y3 Output 1 (NC)

6 COM1

Output common 2

15 Y4 Output 2 (NO)

7 COM1

Output common 2

16 Y5 Output 2 (NC)

8 COM1

Output common 3

17 Y6 Output 3 (NO)

9 COM1

Output common 3

18 Y7 Output 3 (NC)

■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-DC4G

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp

EM-7803-BB P. 3 / 4

PC CONFIGURATOR

The following parameter items can be set with using PC Conﬁgurator Software (model: R7CON).

Refer to the users manual for the R7CON for detailed operation of the software program.

■INTERFACE SETTING

PARAMETER SETTING RANGE DEFAULT SETTING

Communication Timeout 0.0 – 3276.7 (sec.) 3.0 (sec.)

Data Mode RTU / ASCII RTU

Parity NONE / ODD / EVEN NONE

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

30 (1.18) [5 (.20)]

3 (.12)5.5 (.22)

DIN RAIL

35mm 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-DC4G

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp

EM-7803-BB P. 4 / 4

■CONNECTION DIAGRAM

Note: In order to improve EMC performance, bond the FG terminal to ground.

Caution: FG terminal is NOT a protective conductor terminal.

SLD

24V DC

Y1B (NC)

COM1

Y0A (NO)

Y0B (NC)

COM0

Y1A (NO)

Y3B (NC)

COM3

+24V

Y2A (NO)

Y2B (NC)

COM2

Y3A (NO)

COMMUNICATION CABLE CONNECTIONS

■

MASTER CONNECTION

Tx+/Rx+

Tx–/Rx–

Rx+

Rx–

Host PC

SLD

Remote Unit

SLD

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)

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