MG Mini-M M2SED Manuale utente

EM-5042 Rev.12 P. 1 / 4

MG CO., LTD. www.mgco.jp

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

INSTRUCTION MANUAL

Mini-M™

DC ALARM

(thumbwheel switch adjustment) MODEL M2SED

BEFORE USE ....

Thank you for choosing us. Before use, please check con-

tents 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.

This equipment is for use in general industrial environ-

ments, therefore may not be suitable for applications which

require higher level of safety (e.g. safety or accident preven-

tion systems) or of reliability (e.g. vehicle control or combus-

tion control systems).

For safety, installation and maintenance of this equipment

must be conducted by qualiﬁed personnel.

■PACKAGE INCLUDES:

Signal conditioner

(body + base socket + input resistor)..................................(1)

Input resistor is provided only with current input type.

■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.

■SYMBOLS USED ON THE PRODUCT AND IN THIS MANUAL

The symbol indicated on the equipment, means that the

user must refer to the related parts in the manual for safe

operation of the equipment. It is essential to read the in-

structions wherever the symbol appears in the manual.

WARNING: is reserved for conditions and actions that

can cause serious or fatal injury.

CAUTION: is reserved for conditions and actions that can

cause injury or instrument damage.

WARNING

■INSULATION CLASS

Insulation class of this unit is as follows.

• Input to power: reinforced insulation (300 V)

• Output to power: reinforced insulation (300 V)

• Input to output: basic insulation (300 V)

(Reinforced insulation (150 V) for UL)

For basic insulation, if insulation failure may result in

equipment, hazardous voltage may result to signal input

and then electric shock may cause.

Prior to installation, prepare supplemental insulation

(equivalent basic insulation) between signal input and ex-

ternal circuits.

CAUTION

■REGARDING SAFETY

If the equipment is used in a manner not speciﬁed by us,

the protection provided by the equipment may be impaired.

■CONFORMITY WITH EU DIRECTIVES, UK LEGISLATION OR UL

• This equipment is suitable for

- Measurement Category II (output, transient voltage 2500V)

(output, transient voltage 1500 V for UL)

- Installation Category II (transient voltage 2500V)

- Pollution Degree 2

Prior to installation, check that the insulation class of

this unit satisﬁes the system requirements.

• Altitude up to 2000 meters.

• The equipment must be installed such that appropriate

clearance and creepage distances are maintained to con-

form to CE/UKCA/UL requirements. Failure to observe

these requirements may invalidate the CE/UKCA/UL

conformance.

• The actual installation environments such as panel con-

ﬁgurations, connected devices, 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/UKCA

requirements in regard to the whole system and employ

additional protective measures* to ensure the CE/UKCA

conformity.

* For example, installation of noise ﬁlters and clamp ﬁl-

ters for the power source, input and output connected

to the unit, etc.

• Install lightning surge protectors for those wires connect-

ed to remote locations.

■SIGNAL INPUT

This terminal is used for signal input.

Do not connect or measure to the circuits including tran-

sient voltage max. 2500V.

Refer to “INPUT SPECIFICATIONS” in detail.

■OUTPUT TERMINAL

Never use the output terminal under any load that exceeds

the rated values. Otherwise it will impair prescribed per-

formance and cause burning of the equipment itself.

■WIRING

• For wiring connection, refer to “TERMINAL CONNEC-

TIONS” and wire correctly. Fire, electric shock and fail-

ure cause if wire are incorrectly connected.

• 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.

M2SED

EM-5042 Rev.12 P. 2 / 4

MG CO., LTD. www.mgco.jp

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

POINTS OF CAUTION

■POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and

conﬁrm its operational range as indicated below:

AC Power rating M2: 100-240 V AC, 50-60 Hz, ≤ 3-5 VA

(85-264 V AC, 47-66 Hz)

DC Power rating R: 24 V DC (24 V DC±10%), ≤ 3W

R2: 11-27 V DC, ≤ 3W

(CE, UKCA and UL not available)

P: 110 V DC (85-150 V DC), ≤ 3W

■GENERAL PRECAUTIONS

• Before you remove the unit from its base socket 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 -5 to +55°C

(23 to 131°F) with relative humidity within 30 to 90% RH

in order to ensure adequate life span and operation.

• Be sure that the ventilation slits are not covered with ca-

bles, etc.

■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.

• Never use the internal relay under any load that exceeds

the rated contact values including the switching capaci-

ties (contact voltage and contact current).

Otherwise it will impair prescribed performance (insula-

tion failure, contact welding, contact failure) and cause

burning of the Relay itself.

INPUT SPECIFICATIONS

■DC CURRENT

shunt resistor attached toinput terminals (0.5 W)

A: 4 – 20 mA DC

■DC VOLTAGE

4: 0 – 10 V DC

5: 0 – 5 V DC

6: 1 – 5 V DC

OUTPUT SPECIFICATIONS

■RELAY CONTACT

100 V AC @5 A (cos ø = 1)

120 V AC @5 A (cos ø = 1)

240 V AC @2.5 A (cos ø = 1)

(UL not available (120 V AC ≤ 5 A for UL))

30 V DC @5 A (resistive load)

COMPONENT IDENTIFICATION

Input Resistor

Body Base Socket

Connection

Diagram

Specifications

Fixing Screw

■FRONT PANEL CONFIGURATION

The front cover cannot be turned open by 180 deg.

when there is no extra space between units.

Output 1 Setpoint Adj.

Output 2 Setpoint Adj.

Output 1 Monitor LED

Output 2 Monitor LED

9 9

M2SED

EM-5042 Rev.12 P. 3 / 4

MG CO., LTD. www.mgco.jp

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

INSTALLATION

Loosen the ﬁxing screw at the front of the unit in order to

separate the body from the base socket.

DIN Rail

35mm wide

Spring Loaded

DIN Rail Adaptor

■DIN RAIL MOUNTING

Set the base socket so that

its DIN rail adaptor is at

the bottom. Hang the up-

per hook at the rear side

of base socket on the DIN

rail and push in the lower.

When removing the socket,

push down the DIN rail

adaptor utilizing a minus

screwdriver and pull.

■WALL MOUNTING

• Install using M3 or M4 screw with referring to the follow-

ing dimension.

• Install by screw that is securely fastened or equivalent

means.

59±0.3

22±0.2

2-M3, M4 or

4.5 dia hole

unit: mm

TERMINAL CONNECTIONS

Connect the unit as in the diagram below or refer to the connection diagram on the side of the unit.

When an input resistor is provided with the module, attach it together with input wiring to the input screw terminals.

■EXTERNAL DIMENSIONS unit: mm (inch)

8 7

1011

123

21.5 (.85)

70.5 (2.78)

86.7 (3.41)7.3 (.29) 22 (.87)

6 (.23)

59 (2.32)

DIN RAIL

35mm wide

[4 (.16)]

11–M3

SCREW

72 (2.83)4 (.16)

29.5 (1.16)

2–4.2x5

(.17x.20)

MTG HOLE

6 (.24) deep

116.7 (4.59)

• When mounting, no extra space is needed between units.

■CONNECTION DIAGRAM

N.C.

OUTPUT 1

N.O.

COM

N.C.

OUTPUT 2

N.O.

COM

–

INPUT

*Input shunt resistor attached for current input.

U(+)

V(–)

POWER

■TERMINAL ASSIGNMENTS unit: mm (inch)

8 7

1011

INPUT RESISTOR

(model: REM2)

19 (.75)

Input shunt resistor attached

for current input.

M2SED

EM-5042 Rev.12 P. 4 / 4

MG CO., LTD. www.mgco.jp

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

WIRING INSTRUCTIONS

■SCREW TERMINAL

Torque: 0.8 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)

CHECKING

1) Terminal wiring: Check that all cables are correctly con-

nected according to the connection diagram.

2) Power input voltage: Check voltage across the terminal

10 – 11 with a multimeter.

3) Input: Check that the input signal is within 0 – 100% of

the full-scale.

4) Check that the output load is 240V AC/600VA or 120V

DC/150W (120V AC/600VA or 120V DC/150W for UL) at

the maximum. For maximum relay life with inductive

loads, external protection is recommended.

050 100▲

Input

(%)

Setpoint 2

▲

Setpoint 1

Output 1

(5–7)ON

Output 2

(3–9)ON

(3–6)ON

(5–8)ON

Alarm Trip Operation Terminal No. in parentheses

Trip Operation in Power Failure: Terminals 3 – 9 and 5 – 8 turn on.

SETPOINT ADJUSTMENTS

Turn the thumbwheel switches until desired ﬁgures in per-

cent are shown. Output 1 is for Hi trip, while Output 2 is

for Lo. Monitor LED turns on when the coil is energized

([input] > [setpoint] for Output 1, [input] < [setpoint] for

Output 2).

MAINTENANCE

Regular calibration procedure is explained below:

■CALIBRATION

Warm up the unit for at least 10 minutes.

• Hi Alarm

Increase the input signal from a value lower than the set-

point and check that the relay trips at the setpoint.

• Lo Alarm

Decrease the input signal from a value higher than the

setpoint and check that the relay trips at the setpoint.

When the trip points are shifted, please contact our sales

ofﬁce or representatives.

LIGHTNING SURGE PROTECTION

We offer a series of lightning surge protector for protec-

tion against induced lightning surges. Please contact us to

choose appropriate models.

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