Terminal
device
Terminal
device
Correct
Not correct
2. Parts Name
3. How to Mount
4. Wiring
◆
Front
◆
Back
◆
Dimensions
・
Recommended breaker: 3 -15A
・
Recommended fuse: Time-lag fuse Rated current 2A
◆
RS485 communication wiring
◆
Connection of KW9M and the other devices with 2-wire
(unit: mm)
(tolerance:±1.0)
Mounting bracket
Terminal
block A
Terminal
block C
Terminal block B
Mounting screw: M4×10
Display
□
96
(45.7)
(70.4)
(25.6)
56
（
68
）
14
□
91
±0.4
◆
Panel mounting
◆
Panel cut-out
1) Remove the mounting clips from
the unit.
2) Insert the unit from the front of
the panel.
3) Attach the mounting clips at the both
side of the case and secure in place
with the screws.
(Tightening torque:
approx. 0.2 to 0.3N
･
m)
・
Applicable panel thickness: 1 to 5mm
Keep enough space for several mountings.
recommended space:
130mm the left, right, top and bottom
from center of the unit.
92
±0.5
92
±0.5
Terminal block A (upper) 10P
Terminal block C (middle) 8P
Terminal block B (lower) 10P
1
No.
Function
No.
Function
No.
Function
Terminal
Input voltage
Phase and wire
system
Single-phase
two-wire
Single-phase
two-wire
Single-phase
three-wire
Three-phase
three-wire
Three-phase
four-wire
Terminal
No.
Power supply
Measured
voltage input
L +
RS485
Output 1
Output 2
Input 1
Input 2
2
N
－
3
V1
4
V2
5
V3
6
Vn
7
NC
8
SG
9
A +
10
B
－
1
OUT1
IN1+ IN1
－
IN2+ IN2
－
COM1 OUT2 COM2
2
3
4
5
6
7
8
AUX
（
Power supply)
Measured voltage input
Measured current input
vacant
1
CT1
k
CT1
l
l
l
l
CT2
k
CT2
CT3
k
CT3
CTn
k
CTn
2
3
4
5
6
7
8
Power supply
Breaker
Load
Primary side current
Secondary side current
CT(secondary current 1A or 5A)
Ammeter etc.
without
Ammeter
3
）
2
）
1
）
6
）
K
L
k
l
4
）
5
）
VT (Voltage Transformer)
L1(R)
L2(S)
L3(T)
N
Breaker
AUX
(Power supply)
Ｘ Ｘ
Terminal block A (upper)
3 - 6
3 - 5 - 6
3 - 4 - 5 - 6
3 - 5 - 6
85
～
264VAC
100
～
300VDC
1 - 2
0
～
500VAC
［
0
～
500V
］
85
～
264V
100
～
300V
Item indication
Sub-indication
Log indication
Keys
Measured value
Unit
Lock mark
Alarm indication
Load ratio indication
TX/RX mark
Pulse output
Pulse input
Terminal block A
Terminal block B
Terminal block C
Battery label
Backup battery
Mounting bracket
Mounting bracket
USB port
Please remove and throw away the battery according
to the instruction of your area when throwing the product.
The input voltage to each terminal is as follows.
Connect terminating resistors to the both end of the communication line including
a upper device. Connect terminating resistors (120
Ω
1/2W or more) between [A+]
and [B-] of Eco-POWER METER connected the end of RS485 line.
Terminal block A
(upper)
Class D
120
Ω
1/2W or more
Upper device
RS485 device
SG
＋
－
SG
8 9 10
Terminal block A
(upper)
8 9 10
A
＋
B
－
SG
A
＋
B
－
Except KW9M
KW9M terminal
class D
120
Ω
1/2W or more
Terminal device
except KW9M
terminal connection
To RS485 device
Shielded cable
Shielded cable
Shielded cable
Short-circuit [
－
] to [E].
＊
Do not connect
shielded cable to [E].
＊
Do not connect
shielded cable to [E].
＊
Connect
KW9M
Terminal
Terminal
Except terminals
E
＋
－
SG A
＋
B
－
E
＋
－
SG A
＋
B
－
1. Before use
5. Wiring Diagram
6. How to attach Current Transformer
8. For Input Connection
7. For RS485 Connection
●
Eco-POWER METER is designed chiefly to manage saving energy.
It is neither intended nor can it be legally used for billing.
●
Eco-POWER METER is designed to be used installing in a control panel.
●
Please use Eco-POWER METER according to the specification described.
Otherwise, it may malfunction or cause fire and an electric shock.
・
Connect Eco-POWER METER to the power supply in compliance with
the rating.
・
Refer to the wiring diagram to ensure proper wiring for the power
supply, input and output.
・
Use an electric wire applicable to the rated current.
・
Do not perform wiring or installation with a live line. It may also lead
to circuit burnout or fire by way of the secondary CT side opening.
●
Do not connect voltage input, current input, pulse input wires parallel
to high-voltage or power cables and avoid using the same conduit.
Use shielded wires as short as possible.
●
Do not turn on the power supply or input until all wiring is completed.
●
Do not use at secondary side circuit of inverter. It might cause exothermic
heat or damage.
●
If additional noise effects power supply line, voltage input line, current
input line, incorrect measurements may result.
●
Installation and wiring must be performed by expert personnel for
electrical work or electric piping.
●
Please wipe dirt of the main unit with soft cloth etc.When thinner is used,
the unit might deform or be discolored.
●
Do not add an excess power to the display. It might break the inner liquid
crystal.
I n s t a l l a t i o n i n s t r u c t i o n s
KW9M Eco-POWER METER
Advanced Type
Read these instructions carefully for proper installation.
After installation, keep it in a safe place for reference when required.
You can download the user's manual from our website.
For User's manual
■
For your safety, make sure to satisfy the following conditions.
・
Overvoltage category:
Ⅱ
, Pollution degree 2
・
Indoor use
・
An ambient temperature of -25 to 55
℃
・
An ambient non-condensing humidity of 30 to 85%RH (at 20
℃
)
・
Altitude of 2000m or less
■
Do not use in the following environments.
・
Where it will be exposed to direct sunlight
・
Where inflammable or corrosive gas might be produced
・
Where it will be exposed to excessive airborne dust or metal particles
・
Where it will be exposed to water, oil or chemicals
・
Where direct vibration or shock might be transmitted
・
Where the place near high-voltage cable, power line or machineries which
occurs the big switching serge.
・
Be sure to wire correctly according to the wiring diagrams.
・
Please connect breakers or fuses to the power supply input part for
safety reasons and to protect the device.
This product has no built-in power switch, circuit breaker or fuse.
Therefore it is necessary to install them in the circuit near this unit.
・
Do not turn on the power supply or input until all wiring is completed.
・
Never open the secondary circuit of CT under applying current to load,
never remove the terminal block under applying current to load, it will
cause electric shock or breakdown CT.
◆
Terminal arrangement
・
Use CT that the secondary side current is 5A or 1A.
・
One CT is needed for 1 unit when measuring 1P2W (2 CTs for 2-circuit,
3CTs for 3-circuit). Two CTs are needed when measuring 1P3W/3P3W.
Three CTs are needed when measuring 3P4W (4 CTs to measure N-phase).
Using all CTs for one unit should be the same.
・
Use the applicable wire, or it might cause a breakdown, burnout or
electric shock.
・
When connecting CT, connect the secondary side to the terminal of the
main unit first, and after that wire the primary side to a load electric wire.
Incorrect order might cause an electric shock or break CT.
・
The CT has polarity. Wire correctly according to the K and L marks.
Wrong direction can’ t measure correctly.
・
If there is some distortion by harmonic or waveform, it may not measure
correctly. Please check with the actual system before adopts it.
・
Separate the wiring (strong electric part) of the measured voltage input
terminal (operating power supply terminal) from the CT cable.
It may not satisfy the accuracy due to noise.
◆
How to connect CT
(1) Power off the measured devices.
(2) Install applicable CT.
(3) Remove terminal block of KW9M.
(4) Connect CT to the terminal block.
(5) Insert terminal block to KW9M surely.
(6) After confirm all wiring correct, turn on the power of the load
and KW9M.
* Connect CT wiring and terminal block surely.
It will cause CT breakdown.
* Never remove the terminal block under applying current to
load. It will cause electric shock or breakdown CT.
◆
Pulse input
・
Contact input
Use highly reliable metal plated
contacts. Since the contact’ s bounce
time leads directly to error in the count
value, use contacts with as short
a bounce time as possible. In general,
select 30Hz for max. counting speed.
・
Non-contact input (Transistor input)
Connect with an open collector.
Use the transistor with the following specifications.
V
CEO
=20V min. I
C
=20mA min. I
CBO
=6µA max.
Use transistors with a residual voltage of less than 2V when the transistor
is ON.
*Short-circuit impedance should be less than 1k
Ω
.
Open-circuit impedance should be more than 100k
Ω
.
Leak current in shorted is about 10mA.
・
Input wiring
Please wire up as short as possible by using a shielded wire or a metallic
electric wire tube individually.
9. For Output Connection
◆
PhotoMOS relay output
・
PhotoMOS relay is mounted in this product, therefore it has no polarity.
・
Wire up to 100m for output connection.
◆
When using VT(voltage transformer)
1P2W
3P4W
1P3W
／
3P3W
AUX
CT3
L1(R)
L2(N/S)
L3(T)
Ｘ Ｘ
Ｘ Ｘ
Ｘ
L+ N- V1 V2 V3 Vn NC SG A+
B-
CT1
k
CT1
l
CT2
k
CT2
l
CT3
k
CT3
l
CTn
k
CTn
l
CT1
Connect CTn to measure N-phase.
CTn is not necessary for normal measurement.
AUX
CT1
CT2
CT3
L1(R)
L2(S)
L3(T)
N
CTn
(To measure
N-phase)
Ｘ Ｘ
Ｘ Ｘ Ｘ
Ｘ
L+ N- V1 V2 V3 Vn NC SG A+
B-
CT1
k
CT1
l
CT2
k
CT2
l
CT3
k
CT3
l
CTn
k
CTn
l
Terminal block A (upper)
Terminal block B (lower)
Breaker
(To measure
3-circuit)
(To measure 3-circuit)
AUX
(Power supply)
Breaker
(Power supply)
Breaker
(Power supply)
Power
supply side
Load side
Power
supply side
Load side
Power
supply side
Load side
CT1 CT2 CT3
L1(R)
N
Ｘ Ｘ
Ｘ
Ｘ
L+ N- V1 V2 V3 Vn NC SG A+ B-
CT1
k
CT1
l
CT2
k
CT2
l
CT3
k
CT3
l
CTn
k
CTn
l
K
L
K
L
K
L
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8
Terminal block A (upper)
Terminal block B (lower)
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8
10
10
Terminal block A (upper)
Terminal block B (lower)
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8
10
1 2 3 4 5 6 7 8 9 10
◆
Applicable wire (Crimp-type terminal is recommended.
)
◆
Applicable ferrules (by Weidmuller)
Terminal block: A
･
Stripping length: 7 to 8mm
Screw size: M2.5
Tightening torque: 0.4 to 0.5N
･
m
Sectional area
*Use shielded wire for RS485 communication.
*Use applicable wire according to the measured current.
*Only for terminal block A and B. It cant be used for C.
single /stranded wire 0.5 to 4mm
2
(AWG20 to12)
・
for 2pcs.
single/stranded wire 2pcs.×0.5 to 2mm
2
(AWG20 to 14)
・
Power supply/Measured voltage/RS485 communication
Terminal block: C
Screw size: M2
Tightening torque: 0.2 to 0.25N
･
m
Sectional area:
single /stranded wire
0.5 to 1.5mm
2
(AWG20 to16)
・
Output/Input
Terminal block: B
Screw size: M2.5
Tightening torque: 0.4 to 0.5N
･
m
Sectional area:
single /stranded wire
0.5 to 4mm
2
(AWG20 to12)
・
CT Input (Measured current)
Wire size
0.75mm
2
1.25mm
2
2mm
2
*
For 1pc.
For 2pcs. *
Name
Part number
Name
Part number
H0.75/14D GR
H1.5/14D SW
H2.5/15D BL
9019040000
9019120000
9019160000
H0.75/14D ZH GR H1.5/16D ZH SW
9037410000
9037470000
Vn terminal should be connected to N-phase which is grounded.
The input number 6 of terminal block A has to be connected to protective earth
to ensure installation safety.
R
R
C
IN
＋
5 or 7
IN
－
6 or 8
Photo
-coupler
OUT
Output (rated capacity 30V AC/DC, 0.1A)
COM
1 or 3
2 or 4
Internal circuit
Internal circuit
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
