M-system MD7G 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-8065 Rev.2 P. 1 / 2

INSTRUCTION MANUAL

TERMINAL BLOCK FOR GROUNDING

(ultra-slim) MODEL MD7G

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:

Terminal block.....................................................................(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 and connection.

POINTS OF CAUTION

■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 -25 to +85°C

(-13 to +185°F) with relative humidity within 30 to 90%

RH in order to ensure adequate life span and operation.

•This unit needs a DIN rail as earth grounding bar. Ox-

ide coating of an aluminium rail may lower the electric

conductivity between this module and the ground. Use a

steel or copper rail.

COMPONENT IDENTIFICATION

Body

Spring Loader

DIN Rail Mounting

Adaptor (for grounding)

Connection

Diagram

(left side)

Model No.

Indication

INSTALLATION

Mount the unit on a DIN rail. Once installed, do not move

it to another DIN rail.

■MOUNTING THE UNIT ON A DIN RAIL

A)Hang the upper hook of the DIN rail mounting adaptor at

the rear side of unit, on the DIN rail.

B)Push in the lower in keeping pressing the unit to the DIN

rail.

C)DIN rails generally have slight individual variability in

size. If you ﬁnd it difﬁcult to push in the lower part, go

back to (A) and hang the upper part more deeply onto the

rail and try (B) again.

A

DIN Rail

B

■REMOVING THE UNIT

A)Push down the spring loader utilizing a minus screwdriv-

er.

B)Conﬁrm that it is pulled enough down and pull out the

lower part of the unit.

C)Detach the upper part from the DIN rail.

A

B

Spring Loader

C

MD7G

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-8065 Rev.2 P. 2 / 2

TERMINAL CONNECTION

Connect the unit as in the diagram below.

Be sure to ground the DIN rail on which the unit is mounted.

This unit, designed to connect shield wires and cross wires of the protected devices to a DIN rail, is NOT used to ground the

DIN rail.

■EXTERNAL DIMENSIONS unit: mm (inch)

8

6

5

4

1

2

3

7

4

1

5

2

6

3

8

7

95 (3.74)

7

(.28)

98 (3.86) [1.5 (.06)]

8–M3 EURO

TERMINAL

DIN RAIL

(35 mm wide)

DIN RAIL

ADAPTOR

WIRE INSERTION ANGLE: approx. 20°

57 (2.24)

1.9 (.07)

■CONNECTION DIAGRAM

2 5

3 6

8

7

1 4

DIN RAIL ADAPTOR

(for grounding)

DIN RAIL

Grounding

DO NOT connect to unused terminals.

*1. Oxide coating of an aluminium rail may lower the electric conductivity

between this module and the ground. Use a steel or copper rail.

*2. Be sure to ground the DIN rail.

Recommended grounding resistance ≤100Ω

*2

*1

WIRING INSTRUCTIONS

■EURO TERMINAL

Torque: 0.3 N·m

Applicable wire size: 0.2 – 2.5 mm2

Stripped length: 8 mm

■CAUTION WHEN WIRING

Hold the module steady at the front when you

tighten/loosen screw terminals.

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