MG Mini-M M2SED User manual

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
31
44
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
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)
4
8 7
1011
56
123
9
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
6
3
8
7
5
9
N.C.
OUTPUT 1
N.O.
COM
N.C.
OUTPUT 2
N.O.
COM
+
–
*
INPUT
1
R
2
*Input shunt resistor attached for current input.
U(+)
V(–)
POWER
10
11
■TERMINAL ASSIGNMENTS unit: mm (inch)
46
8 7
1011
3
5
9
12
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.