M-system R7M-EC8A User manual

R7M-EC8A

P. 1 / 6EM-7803-O Rev.2

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

NPN TRANSISTOR OUTPUT EXTENSION MODULE, 8 points

(Modbus) MODEL

R7M-EC8A

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:

Discrete output extension 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 EC DIRECTIVES

• The equipment must be mounted inside the instrument

panel of a metal enclosure.

• The actual installation environments such as panel con-

ﬁgurations, connected devices and connected wires may

affect 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 CE conformity.

■GENERAL PRECAUTIONS

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

supply and input 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 ven-

tilation.

• 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 sup-

plied, however, a warm up for 10 minutes is required for

satisfying complete performance described in the data

sheet.

R7M-EC8A

P. 2 / 6EM-7803-O Rev.2

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

CONNECTION DIAGRAM

Connect the unit as in the diagram below.

WIRING INSTRUCTIONS

■SOLDERLESS TERMINAL mm (inch)

Refer to the drawing below for recommended ring tongue

terminal size. Spade tongue type is also applicable. Solder-

less terminals with insulation sleeve do not ﬁt. Applicable

wire size: 0.3 – 0.75 mm2

COMPONENT IDENTIFICATION

■OUTPUT TERMINAL ASSIGNMENT

■DISCRETE I/O STATUS INDICATOR LED

Discrete I/O modules including those for extensions have

LED indicators showing I/O signal status.

Contact ON : LED ON

Contact OFF : LED OFF

NO.

ID FUNCTION

NO.

ID FUNCTION

1 0V 0V (common) 6 +24V 24V DC

2 Y0 Output 0 7 Y1 Output 1

3 Y2 Output 2 8 Y3 Output 3

4 Y4 Output 4 9 Y5 Output 5

5 Y6 Output 6 10 Y7 Output 7

CONNECTING THE EXTENSION MODULE

1) Remove the extension connector cover located at the side

of the basic module.

2) Connect the extension module.

3) Mount the combined module on a DIN rail.

01234567

Discrete Output Status Indicator LED

Output Terminals

786910

23145

+24 V

0 V

10V

9Y5

8Y3

7Y1

5Y6

4Y4

3Y2

+24V

■ Output Connection Example

+24V

–

EXTENSION CONNECTOR

3.2 (.13) dia.

4 min.

(.16)

3 (.12) max.

12 (.47) max.

6 max.

(.24)

R7M-EC8A

P. 3 / 6EM-7803-O Rev.2

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

CONFORMITY WITH CE MARKING

■CE MARKING

CE marking requires to integrate safety regulations existed in each country in EU territory and to secure smooth distribution

of products of which safety is guaranteed. It is mandatory by law that products distributed and sold in EU territory to have

CE mark which shows that the product conforms with the requirements of EC Directive. Each EC Directive describes the

scope of apparatuses to which that EC Directive is applied. M-System’s R7M must conform with EMC Directive.

Each Directive states only basic requirements. In order to mark the CE on an assembled machinery equipment, its manufac-

turer needs to check the overall conformity with Directives applicable to it.

■WARNINGS AND CAUTIONS WHEN INSTALLING THE R7M

The R7M needs to be installed in a control panel. This is effective not only to ensure general safety but also to contain noise

emissions by the R7M inside the control panel. We conduct a series of testing to see that the product conforms to EMC Direc-

tive while it is installed in the control panel.

Warning and cautions when installing R7M are stated below.

• Use control panels with an internal panel plate, both made of metal, when installing the R7M.

• Make sure to adequately ground the control panel and the internal panel plate with a thick cable to maintain low impedance

at high frequency.

• Use shielded cables for the signals taken out of the control panel.

• Choose a thick and short cable to ground the FG terminal of the R7M module to the internal panel plate of the control

panel.

Note: If electromagnetic radiation disturbance increases by grounding the FG terminal, remove the grounding.

• When painting the internal plate of the control panel, apply masking to expose metal surface to secure conductivity at the

sections where the following parts are attached:

- Bolts attaching the internal panel to the control panel

- Ground for the FG of the R7M module

- Earth clamp on the shielded cable

• Noise emissions inside the control panel might leak through its openings. Design them as small as possible. Recommended

diameter is 10 cm or less.

Supplement:

Additional measures may be taken depending upon actual installation sites. These points of cautions are illustrated in the

next page.

• Prevent noise leakage by wrapping cables using shield covers, shield tubes and ﬂexible conduits etc. if noise leaks through

the cable outlet.

• Use an electromagnetic shield gasket and block up the gap between the control panel cabinet and its cover, if noise leaks

through it.

• Connecting the internal panel plate and the cover of the control panel to the main cabinet using an earth strap may be ef-

fective to strengthen the grounding.

• Electromagnetically shielded control panel cabinet is effective for shielding.

EXTERNAL DIMENSIONS unit: mm (inch)

11.5

(.45)

786910

23145

65 (2.56)

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)

10–M3 SCREW

TERMINALS

for OUTPUT

6 (.24)

R7M-EC8A

P. 4 / 6EM-7803-O Rev.2

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

Use (e.g.) a shield cover

when noise leaks through

the opening.

To external apparatus

Keep the opening

for cabling as small as

possible.

Install an electromagnetically

shielded gasket when

noise leaks through

the opening. Shielding is strengthened

by using an electro-

magnetically shielded

control panel.

By connecting the

internal panel plate

and the panel cover with

an earth strap, grounding

may be strengthened and

EMC may be improved.

Ground the control panel

at low impedance using

(e.g.) braided wires.

Keep the opening for

ventilation as small as

posible.

Attach an electro-

magnetically shielded

filter when noise leaks

through the opening.

Install the R7M Series inside

a control panel.

Attachment part of earth

clamp should be fixed with

screw in conduction with the

internal panel plate.

• Points of cautions applicable when installing the R7M Series

R7M-EC8A

P. 5 / 6EM-7803-O Rev.2

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

■WARNINGS AND CAUTIONS WHEN LAYING CABLES

Signal cables connected to the R7M contain high-frequency components. Since these cables has the same effect as an an-

tenna, they emit these high-frequency components to the external space as noise or overlaps noise from the external space

on themselves.

Cables with shielding should be used for the signal line due to the above reason.

EMC conformance test is conducted in the condition that shielded cables and earth clamps are used with the R7M.

Warning and cautions when laying cables are stated below. These points of cautions are illustrated in the next page.

• Use shielded cables for those signal cables installed out of the control panel and for thermocouple and RTD extension

wires.

• All the network cables connected to R7M should be shielded.

• Use shielded cables for network communication.

• Expose the shield at a part of the cable cover, clip it with an earth clamp, and ground it to the internal panel of the control

panel. A drain wire connected to the panel in a pig-tail form cannot maintain low impedance against high-frequency noise,

thus grounding (noise shielding) in this form will not be effective.

Supplement:

Additional measures may be taken depending upon actual installation sites. These points of cautions are illustrated in the

next page.

• Keep cables as short as possible. It prevents noise emissions from the cables and noise overlapping to the cables.

• Attach a ferrite core to reduce noise impact to the signal cables susceptible to the noise. Ferrite core can be attached close

to the cable outlet of the control panel or close to the I/O terminal or connector, whichever is more effective. Also, the impact

might be reduced by winding the cable around the ferrite core for extra turns or attaching multiple ferrite cores.

• Keep cables which are easily affected by noise away from those which can be a noise source.

Motor Drive

Cable

Power Supply

Cable

DC Signal Cable

Network Cable

Analog Signal

Cable

Often being a noise source Often subject to noise interference.

In the following are examples of effective ways to lay cables separately:

• Keeping physical distance (farther than 20 cm from motor drive cables, farther than 10 cm for other groups).

• Dividing off by a grounded metal plate

• Grouping into separate grounded metal pipes or cable shields.

Wires on each side of a ﬁlter should not be too close to each other. Noise could ride onto the other side of cable.

Extra attention needs to be paid at the following parts.

• Noise ﬁlter that is enclosed in power cables.

• Ferrite core that is attached to signal cables.

• Noise limiting circuit (surge quenching circuit, transient absorber circuit, etc.) that is enclosed in signal cables.

R7M-EC8A

P. 6 / 6EM-7803-O Rev.2

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

M-SYSTEM WARRANTY

M-System warrants such new M-System product which it manufactures to be free from defects in materials and workmanship during the 36-month period following the date that such

product was originally purchased if such product has been used under normal operating conditions and properly maintained, M-System’s sole liability, and purchaser’s exclusive

remedies, under this warranty are, at M-System’s option, the repair, replacement or refund of the purchase price of any M-System product which is defective under the terms of this

warranty. To submit a claim under this warranty, the purchaser must return, at its expense, the defective M-System product to the below address together with a copy of its original

sales invoice.

THIS IS THE ONLY WARRANTY APPLICABLE TO M-SYSTEM PRODUCT AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED

WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. M-SYSTEM SHALL HAVE NO LIABILITY FOR CONSEQUENTIAL, INCIDENTAL OR

SPECIAL DAMAGES OF ANY KIND WHATSOEVER.

M-System Co., Ltd., 5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN, Phone: (06) 6659-8201, Fax: (06) 6659-8510, E-mail: info@m-system.co.jp

Noise

Filter

Motor

Drive Cable Maintain distance between

cables and noise sources.

Grounding in pig tail form

is not effective.

• Points of cautions applicable when wiring the R7M Series

To external apparatus

Keep the cable as

short as possible.

To external apparatus

Shielded

Cable

Earth

Clamp

Remove a part of the shielded

cable cover and ground it

to the internal panel

plate using an earth

clamp.

To connect with

apparatuses outside

the control panel via

Modbus, ground the

cable shield using

an earth clamp.

Keep the wires away from

each other at both ends of

the filter.

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