R7M-EC16B

INSTRUCTION MANUALPNP TRANSISTOR OUTPUT EXTENSION MODULE, 16 points MODEL R7M-EC16B(Modbus)

BEFORE USE ....

POINTS OF CAUTION

Thank you for choosing us. 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 our sales office or representatives.

■ NONINCENDIVE APPROVAL OPTION• This equipment is suitable for use in Class I, Division 2,Groups A, B, C, D or Non-Hazardous Locations only.
• WARNING! – Explosion Hazard –Substitution of any component may impair suitability forClass I, Division 2.
• WARNING! – Explosion Hazard –DO NOT disconnect while the circuit is live or unless thearea is known to be free of ignitable concentrations.
• Temperature Code of this equipment is T5 and the Maximum Ambient Temperature is 55°C (Surrounding Temperature inside the fire enclosure).

■ PACKAGE INCLUDES:
Discrete output extension module................................ (1)■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ INSTRUCTION MANUALThis manual describes necessary points of caution when
you use this product, including installation, connection andbasic maintenance procedures.

■ CONFORMITY WITH UL APPROVAL• This equipment is suitable for use in Installation Category II and in a Pollution Degree 2 environment.
• Altitude up to 2000 meters• This equipment must be mounted inside a suitable fire
enclosure.
• This equipment is to be supplied by a Class 2 power supply.
■ CONFORMITY WITH EC DIRECTIVES• The equipment must be mounted inside the instrument
panel of a metal enclosure.
• The actual installation environments such as panel configurations, 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 ventilation.
• Do not install the unit where it is subjected to continuousvibration. 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 frequencyline, 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 supplied, however, a warm up for 10 minutes is required forsatisfying complete performance described in the datasheet.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7803-K Rev.4

P. 1 / 6

R7M-EC16B

COMPONENT IDENTIFICATIONCONNECTION DIAGRAM
Connect the unit as in the diagram below.

0 1 2 3 4 5 6 7 8 9 A B C D E F

10 11 12 13 14 15 16 17 181234567810 +24V

EXTENSION CONNECTOR

Discrete Input Status Indicator LED2 Y03 Y24 Y45 Y66 Y897 YA
8 YC
9 YE

Output Terminals

11 Y1■ 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

12 Y313 Y514 Y7■ OUTPUT TERMINAL ASSIGNMENT

15 Y916 YB

10111213141516
1718+24V Y1Y3Y5Y7
Y9YB
YDYF
1234567890VY0Y2Y4Y6Y8YAYCYE

17 YD
18 YFNO.
123456789ID0VY0Y2Y4Y6Y8YA
YCYE

FUNCTION0VOutput 0Output 2Output 4Output 6Output 8Output 10Output 12Output 14NO. ID
FUNCTION
10 +24V 24V DC (common)
11 Y1
Output 112 Y3
Output 3
13 Y5
Output 514 Y7
Output 715 Y9
Output 916 YB Output 1117 YD Output 1318 YF Output 151 0V■ Output Connection Example+24V 100V 1
Y0 2CONNECTING THE EXTENSION MODULE
1) Remove the extension connector cover located at the sideof the basic module.
2) Connect the extension module.

+ –YF 18WIRING INSTRUCTIONS■ SOLDERLESS TERMINAL mm (inch)
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable. Solderless terminals with insulation sleeve do not fit. Applicablewire size: 0.3 – 0.75 mm24 min.
(.16)

3.2 (.13) dia.

6 max.
(.24)

3 (.12) max.

12 (.47) max.

3) Mount the combined module on a DIN rail.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7803-K Rev.4

P. 2 / 6R7M-EC16B

EXTERNAL DIMENSIONS unit: mm (inch)
17 (.66)

94 (3.70)

54 (2.13)

18.5 (.73)

11.5(.45)

50 (1.97)

DIN RAIL
35mm wide

1011 122313414 155616 177818
93 (.12)15.5 (.22)

30 (1.18)[5 (.20)]

6 (.24)
18–M3 SCREWTERMINALS
for OUTPUTCONFORMITY WITH CE MARKING■ CE MARKING
CE marking requires to integrate safety regulations existed in each country in EU territory and to secure smooth distributionof 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 thescope of apparatuses to which that EC Directive is applied. The R7M must conform with EMC Directive.
Each Directive states only basic requirements. In order to mark the CE on an assembled machinery equipment, its manufacturer 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 Directive 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 impedanceat 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 thesections 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 thenext page.
• Prevent noise leakage by wrapping cables using shield covers, shield tubes and flexible conduits etc. if noise leaks throughthe 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.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7803-K Rev.4

P. 3 / 6

R7M-EC16B• Points of cautions applicable when installing the R7M Series

Install the R7M Series inside
a control panel.
Attachment part of earth
clamp should be fixed withscrew in conduction with theinternal panel plate.

Keep the opening forventilation as small as
posible.

Attach an electromagnetically shieldedfilter when noise leaks
through the opening.

Keep the opening
for cabling as small as
possible.
To external apparatus
Use (e.g.) a shield coverwhen noise leaks throughthe opening.

By connecting theinternal panel plate
and the panel cover withan earth strap, grounding
may be strengthened and
EMC may be improved.
Install an electromagneticallyshielded gasket whennoise leaks throughShielding is strengthened
the opening.
by using an electromagnetically shielded
control panel.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANGround the control panel
at low impedance using(e.g.) braided wires.

EM-7803-K Rev.4

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R7M-EC16B■ 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 antenna, they emit these high-frequency components to the external space as noise or overlaps noise from the external spaceon 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 thenext 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

Often being a noise source

DC Signal Cable
Network Cable

Analog SignalCable

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.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7803-K Rev.4

P. 5 / 6

R7M-EC16B• Points of cautions applicable when wiring the R7M Series

Keep the wires away fromeach other at both ends ofthe filter.

NoiseFilter

To external apparatus

Keep the cable asshort as possible.

EarthClamp

Shielded
Cable

Remove a part of the shieldedcable cover and ground itto the internal panel
plate using an earthclamp.

To connect withapparatuses outside
the control panel via
Modbus, ground thecable shield using
an earth clamp.

To external apparatus

Motor
Drive Cable

Maintain distance between
cables and noise sources.

Grounding in pig tail form
is not effective.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7803-K Rev.4

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