M-system R7M-CT4E User manual

R7M-CT4E

P. 1 / 7EM-7803-R Rev.3

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

AC CURRENT INPUT MODULE, 4 points

(Modbus; clamp-on current sensor CLSE use) MODEL

R7M-CT4E

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:

AC current input module....................................................(1)

Terminating resistor (110Ω, 0.25W)...................................(1)

■MODEL NO.

Conﬁrm that the model number described on the product is

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.

•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 integrat-

ed 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.

•Install lightning surge protectors for those wires connect-

ed to remote locations. Choose a surge protector with its

maximum surge voltage 40V or less between lines. Rec-

ommended M-System model: MDP-D24.

■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. 100mA

■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

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.

R7M-CT4E

P. 2 / 7EM-7803-R Rev.3

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

COMPONENT IDENTIFICATION

ERR RD

RUN SD

PWR X10 X1

NODE ADD. B.RATE

CNFG.

12345678

4567

123

10 11 12 13

2341

15 16 17 18

7896

(A) Status Indicator LED

(B) Node Address Setting Rotary SW

(D) Operating Mode Setting DIP SW (SW1)

(E) PC Configurator Jack

(F) Modbus, Power Supply Terminals

(G) Input Terminals

(A)

(F) (G)

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

■STATUS INDICATOR LED

ID COLOR FUNCTION

PWR Red Turns on when the internal 5V is supplied

ormally.

RUN Red Turns on when the data is received nor-

mally.

ERR Red

Turns on when the received data is

abnor-

mal. Blinks when setting 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 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.

Baud Rate Setting

0 : 38.4 kbps (factory setting)

1 : 19.2 kbps

2 : 9600 bps

3 : 4800 bps

■EXTENSION MODULE

Combinations with all extension modules are selectable.

■OPERATING MODE

(*) Factory setting

• 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

• Conversion Rate / Accuracy (SW1-3, 1-4)

SW1-3 SW1-4 CONVERSION RATE / ACCURACY

OFF OFF 80 msec. / ±0.5% (*)

ON OFF 40 msec. / ±0.5%

OFF ON 20 msec. / ±1.0%

ON ON 10 msec. / ±2.0%

• Input Range (SW1-5, 1-6, 1-7, 1-8)

SW1-5 SW1-6 SW1-7 SW1-8 INPUT RANGE

OFF OFF OFF OFF CLSE-60 (*)

ON OFF OFF OFF CLSE-40

OFF ON OFF OFF CLSE-20

ON ON OFF OFF CLSE-10

OFF OFF ON OFF CLSE-05

ON OFF ON OFF CLSE-R5

ON ON ON ON

PC Conﬁgurator setting

■POWER SUPPLY, MODBUS TERMINAL ASSIGNMENT

+24V

SLD

NO. ID FUNCTION, NOTES

1 DB ----

2 SLD Shield

3 FG FG

4 DA ----

5 DG ----

6 +24V Power input (24V DC)

7 0V Power input (0V)

■INPUT TERMINAL ASSIGNMENT

NO.

ID FUNCTION

NO.

ID FUNCTION

1 NC No connection 10 K0 AC current K0

2 NC No connection 11 L0 AC current L0

3 NC No connection 12 K1 AC current K1

4 NC No connection 13 L1 AC current L1

5 NC No connection 14 NC No connection

6 NC No connection 15 K2 AC current K2

7 NC No connection 16 L2 AC current L2

8 NC No connection 17 K3 AC current K3

9 NC No connection 18 L3 AC current L3

R7M-CT4E

P. 3 / 7EM-7803-R Rev.3

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

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 INPUT

6 (.24) 6 (.24)

CONNECTION DIAGRAM

Connect the unit as in the diagram below.

24VDC

SLD

INPUT 0

INPUT 1

INPUT 2

INPUT 3

■ Input Connection Example

LOAD

SOURCE

CLAMP-ON SENSOR

EXTENSION CONNECTOR

In order to improve EMC performance, bond the FG

terminal to ground.

Caution: FG terminal is NOT a protective conductor terminal.

WIRING INSTRUCTIONS

■SCREW TERMINAL

Torque: 0.5 N·m

■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.

Communication cable: Applicable wire size 0.2 to 0.5 mm2

(AWG26 - 22)

Recommended manufacturer: Japan Solderless Terminal

MFG.Co.Ltd

Others: 0.25 to 1.65 mm

(AWG 22 to 16)

Recommended manufacturer: Japan Solderless Terminal

MFG.Co.Ltd, Nichifu Co.,ltd

6 (.24) max

3.3 (.13) max

mm (inch)

R7M-CT4E

P. 4 / 7EM-7803-R Rev.3

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

MASTER CONNECTION

■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.

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 EU Directive. Each EU Directive describes the

scope of apparatuses to which that EU 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 imped-

ance 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

effective to strengthen the grounding.

•Electromagnetically shielded control panel cabinet is effective for shielding.

R7M-CT4E

P. 5 / 7EM-7803-R Rev.3

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-CT4E

P. 6 / 7EM-7803-R Rev.3

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-CT4E

P. 7 / 7EM-7803-R Rev.3

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

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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