Mitsubishi Electric EMU4-HD1-MB User Manual page 2

6. Attachingand removing the unit
6.1 Mounting on IEC rail
(2) Pull the unit
6.2 Mounting on the panel
・Dimensions of hole panel ・Mounting
The panel hole dimensions are as shown below. Attached to the panel with screws (2 pcs).
And it can be attached to a panel of thickness Tightening torque : 0.63N・m
1.6 – 4.5mm.
Outline of the unit
CL
Mounting screws
Panel
cross recessed head screw with captive washer
Recommended
and flat washer
screws
M3×10 2pcs
67
77
7. How to wire
7.1 Wiring
Follow the wiring diagram for external connections of this unit.
When using this unit, current sensor (EMU-CT50/CT100/CT250/CT400/CT600, EMU2-CT5 or EMU2-CT5-4W) is necessary.
1P3W/3P3W (for low voltage circuit)
1P2W (for low voltage circuit)
Power source side
1 2 1
1
P1 P2 P3 MA MB
EMU-CT*** model
EMU-CT*** model
split current sensor
split current sensor
(50/100/250/400/600)
(50/100/250/400/600)
1k 3k 485+ SLD
1L 3L 485- Ter
K
K
L
L
RS485 (MODBUS ® )
Load side
3P4W (for high voltage circuit)
Power source side
1 2 3 N
MA MB
P1/P1 P2/P0 P3/P3 NC/P2
Current
transformer ***/ 5A
1k 2k 3k X1 Y1
485+ SLD
1L 2L 3L
485- Ter COMx COM Y
5A current sensor
EMU2-CT5-4W
Contact
K
/pulse output
Contact
K
L /pulse input
L
K
L
5A current sensor cable
RS485 (MODBUS ® )
EMU2-CB-Q5B-4W
Load side
・Make sure that before connecting the cable, the orientation of the current sensor is correct for attachment. K to L is the correct direction.
K: power source side, L: load side
・EMU-CT50/100/250/400/600 is used only for low voltage circuit. (Maximum voltage: 460V) It cannot be used for a high voltage circuit. EMU2-CT5 and EMU2-CT5-4W
should be used with the secondary side (5A) of transformer transfixed. If they are used for the circuit directly, they should be used under 200V. (Maximum voltage: 260V)
・Maximum voltage of the circuit connected to this unit directly is 260V for EMU4-BD1-MB, or 277 / 480V for EMU4-HD1-MB. For the circuit over this voltage, use the
transformer. Using the transformer, primary voltage is configurable up to 6600V.
When screwing the terminals at both ends of the terminal block, be careful not to touch the projection of the terminal block cover.
・
・For MODBUS ® communication wiring, recommended to have the extra length wires about 200mm (When extended to B / NET transmission from MODBUS
use of MODBUS ® communication wiring is possible).
・Dimensions of hole panel
・Mounting
The panel hole dimensions are as shown below. Mount the module to mounting plate by mounting screws
And it can be attached to a panel of thickness (M3×10), then mount the panel mounting attachment.
1.6 – 4.5mm. Tightening torque : 0.63N・m
Outline of the unit
Mounting screws
Panel mounting
attachment
*Please screw up the panel mounting attachment where there are
67 high levels of vibration.
28 (75)
*The screws (mounting screws and screws for panel mounting
77
attachment) are supplied with panel mounting attachment.
106
3P3W (for high voltage circuit)
Power source side Power source side
N 3 3
1 2
2 3
P1 P2 P3 MA MB
Current
1k 3k 485+ SLD transformer ***/ 5A
1L 3L 485- Ter
5A current sensor
EMU2-CT5
K
K
RS485 (MODBUS ® )
L
L K
Load side L
Load side
・For protection against noise, transmission lines and input/output lines shall not be placed close
to or bound together with the power lines and high-voltage lines. Keep distance as below
between them. (except for the terminal block)
Condition distance
Caution High-voltage line 600V or less 300mm or longer
Other high-voltage line 600mm or longer
・For the actual usage, connect the FG terminal to ground. (D-type ground: Type 3) Connect it
directly to the ground terminal.
・Do not connect to FG terminal during the insulation resistance test and pressure test.
7.2 How to connect wires
・Use appropriate crimp-type terminal.
・Use electric wires as below, and tighten the terminal screws by the torque as below.
【EMU4-BD1-MB】
Applicable wire Tightening torque
Power supply terminals, AWG24 - 16 0.8 N・m
voltage input terminals (single wire / stranded wire)
Current input terminals, AWG22 - 14
0.5 - 0.6N・m
input/ output terminals (single wire / stranded wire）
【EMU4-HD1-MB】
Applicable wire Tightening torque
Power supply terminals, AWG26 - 14 0.8 - 1.0 N・m
voltage input terminals (single wire / stranded wire)
Current input terminals, AWG22 - 14
0.5 - 0.6N・m
input/ output terminals (single wire / stranded wire）
8. Dimensions
●EMU4-BD1-MB
CL
Screws for panel
mounting
67
attachment
4 75
9. Specifications
Item
Model
Phase-wire system
Panel
Measurement item
single-phase 2-wire,
three-phase 3-wire
Voltage
single-phase 3-wire
circuit
three-phase 4-wire
Rating
Current circuit
Frequency
MA MB
P1/P1 P2/P0 P3/P3 NC/P2 Auxiliary power supply rating
Measurable circuit count
Input signal type
External input Rated input
voltage/current
Output signal type
1k 2k 3k 485+ SLD X1 Y1 External output Rated open/close
1L 2L 3L voltage/current
485- Ter COMx COM
Y
Contact/ Operating temperature
pulse output
Contact/ Operating humidity
Pulse input
Storage temperature
Operating altitude
RS485 (MODBUS ® )
5A current sensor cable
EMU2-CB-Q5B
Standard
Product life expectancy
10. Warranty
･The charge-free warranty is effective until the earlier of 1 year after the date of your purchase or 18 months after manufacturing. Repair shall be charged for the case failures
occur due to your intent or fault even during the charge-free warranty period.
･Our company shall not be liable to compensate for any loss arising from events not attributable to our company, opportunity loss and lost earning of the customer due to failure
of the product, and loss, secondary loss, accident compensation, damage to other products besides our products and other operations caused by a special reason regardless
of our company's predictability.
Caution If an abnormal sound, bad-smelling smoke, fever break out from this unit, switch it off promptly and don't use it
11. Customer Service
Recommended
Please contact us at the following locations.
crimp-type terminal
For M3 screw of
1-8 Midori-cho, Fukuyama-shi, Hiroshima, 720-8647, Japan
external diameter
Phone: +81-84-926-8142
below 5.6mm
For M3 screw of
external diameter
below 5.6mm
Recommended
crimp-type terminal
For M3.5 screw of
external diameter
below 5.6mm
For M3 screw of
external diameter
below 5.6mm
® communication,
●EMU4-HD1-MB
CL
MITSUBISHI
ELECTRIC
ENERGY MEASURING UNIT
MODEL EMU4-BD1-MB
P1,P2,P3,RATED 110/220V AC(～1P2W,1P3W,3P3W)
1k,1l,3k,3l RATED 66,66mA AC～ 50/60Hz
MEASUREMENT ITEM A,V,W,var,Hz,PF,Wh,varh
COMMUNICATION RS485(MODBUS RTU)
2400-38400bps
AUX.SUPPLY 100-240V～ 50/60Hz 10VA
MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN LY303N900H01
REFER TO
MANUAL
67
15 60
4 75
Specifications
EMU4-BD1-MB EMU4-HD1-MB
single-phase 2-wire / single-phase 3-wire / single-phase 2-wire / single-phase 3-wire /
three-phase 3-wire three-phase 3-wire / three-phase 4-wire
Electric energy (consumption, regeneration), Current, Current
Electric energy (consumption, regeneration), Current,
demand, Voltage, Electric power, Electric power demand, Reactive
Current demand, Voltage, Electric power, Electric power
power, Apparent power, Power factor, Frequency, Harmonic
demand, Reactive power, Power factor, Frequency,
current, Harmonic voltage, Reactive energy, Periodic electric
Reactive energy, Operating time
energy, Pulse count value, Operating time, Equivalent CO
110V, 220V AC 110V, 220V, 440V AC
AC110V (b/w 1- and 2-side, 2- and 3-side), AC110V (b/w 1- and 2-side, 2- and 3-side),
AC220V（b/w 1- and 3-side） AC220V（b/w 1- and 3-side）
Non-compliant Min: AC63.5V/110V, Max: AC277V/480V
50A, 100A, 250A, 400A, 600A AC
(The dedicated split type current sensor is used. Each value refers to the current at the primary side of the current sensor)
5A AC
(The dedicated split type current sensor is used. 5A current sensor is used together with the current transformer (CT), and the
primary-side current is configurable up to 6000A.)
50Hz-60Hz
100-240V AC (+10%, -15%), 50Hz-60Hz
1 circuit
No voltage a-contact 1 input
None
5V DC 7mA
No voltage a-contact 1 output
None
35V DC 75mA or 24V AC 75mA （Power factor = 1）
-5 - +55℃ (Under the conditions indicated in section 3.1)
30 - 85％RH (No condensation)
-10 - +60℃
1000ｍ or below
EMC: EN61326-1: 2006
LVD: EN-61010-1: 2010
10 years (Under the conditions indicated in section 3.1)
Unit [mm]
MITSUBISHI
ELECTRIC
ENERGY MEASURING UNIT
MODEL EMU4-HD1-MB
P1,P2,P3,RATED 110,220,440V AC(～1P2W,1P3W,3P3W)
1k,1l,2k,2l,3k,3l RATED 66,66mA AC～ 50/60Hz
MEASUREMENT ITEM A,V,W,var,VA,Hz,PF,Wh,varh
CONTACT INPUT No Voltage contact
5V DC 7mA
CONTACT OUTPUT No Voltage a-contact
35V DC 75mA
COMMUNICATION RS485(MODBUS RTU)
2400-38400bps
AUX.SUPPLY 100-240V～ 50/60Hz 10VA
MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN LY303N900H11
REFER TO
MANUAL
15 60
2