Panasonic KW9M Eco-Power Meter Installation Instructions

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
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
1. Before use
●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.
■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.
5. Wiring Diagram
・ Recommended breaker: 3 -15A
・ Recommended fuse: Time-lag fuse Rated current 2A
1P2W
Terminal block A (upper) Terminal block B (lower)
1 2 3 4 5 6 7 8 9 10 1 2
CT1 CT1
L+ N- V1 V2 V3 Vn NC SG A+ B-
k l
Ｘ Ｘ
(To measure
Breaker
3-circuit)
Ｘ Ｘ
AUX
(Power supply)
CT1
L1(R)
N
K
1P3W／3P3W
Terminal block A (upper) Terminal block B (lower)
10
1 2 3 4 5 6 7 8 9 1 2
CT1 CT1
L+ N- V1 V2 V3 Vn NC SG A+ B-
k l
Ｘ Ｘ Ｘ Ｘ Ｘ
Breaker
AUX
(Power supply)
CT1
L1(R)
L2(N/S)
L3(T)
K
3P4W
Terminal block A (upper) Terminal block B (lower)
1 2 3 4 5 6 7 8 9 10 1 2
CT1 CT1
L+ N- V1 V2 V3 Vn NC SG A+ B-
k l
Ｘ Ｘ Ｘ Ｘ Ｘ Ｘ
Breaker
AUX
(Power supply)
CT1
L1(R)
L2(S)
CT2
L3(T)
N
K
Connect CTn to measure N-phase.
CTn is not necessary for normal measurement.
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.
2. Parts Name
◆Front
Item indication
Advanced Type
Sub-indication
Log indication
TX/RX mark
Pulse output
Pulse input
◆Back
Terminal block A
Mounting bracket
Terminal block B
USB port
3. How to Mount
◆Dimensions
Display
◆Panel cut-out
92
Keep enough space for several mountings.
recommended space:
130mm the left, right, top and bottom
from center of the unit.
◆When using VT(voltage transformer)
3 4 5 6 7 8
CT2 CT2 CT3 CT3 CTn CTn
k l k l k l
(To measure 3-circuit)
6. How to attach Current Transformer
・ 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.
CT2 CT3
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
L
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.
3 4 5 6 7 8
Wrong direction can' t measure correctly.
CT2 CT2 CT3 CT3 CTn CTn
k l k l k l
・ 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
CT3
(1) Power off the measured devices.
(2) Install applicable CT.
L
(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.
3 4 5 6 7 8
CT2 CT2 CT3 CT3 CTn CTn
k l k l k l
(To measure
N-phase)
Power supply
1）6）
Breaker
CT3
CTn
Primary side current
K
L
2）
CT(secondary current 1A or 5A)
L
Load
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Terminal block C
Mounting bracket
Battery label
Backup battery
Please remove and throw away the battery according
to the instruction of your area when throwing the product.
（68）
□96 14 56 (tolerance:±1.0)
Mounting bracket Terminal block B
Mounting screw: M4×10
◆Panel mounting
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
±0.5
Terminal block A (upper)
1 2 3 4 5 6 7 8 9 10
Breaker
Ｘ Ｘ
VT (Voltage Transformer)
AUX
(Power supply)
L1(R)
L2(S)
L3(T)
N
* 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.
Ammeter etc.
without
Ammeter
Secondary side current k
l
4. Wiring
・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
Terminal block A (upper) 10P
No. 1 2 3
N －
L + V1
Function
AUX
（Power supply)
Measured voltage input
Terminal block C (middle) 8P
No.
1 2 3
OUT1 COM1 OUT2 COM2
Function
Output 1 Output 2
Terminal block B (lower) 10P
1 2 3
No.
CT1 CT1 CT2
k l k
Function
Measured current input
The input voltage to each terminal is as follows.
(unit: mm) Phase and wire
Terminal
system
Single-phase
Power supply
two-wire
Terminal
Single-phase
block A
two-wire
Single-phase
Terminal
Measured
three-wire
block C
voltage input Three-phase
three-wire
Three-phase
four-wire
◆Applicable wire (Crimp-type terminal is recommended.)
・ Power supply/Measured voltage/RS485 communication
Terminal block: A
Screw size: M2.5
Tightening torque: 0.4 to 0.5N･m
Sectional area
single /stranded wire 0.5 to 4mm
・ for 2pcs.
single/stranded wire 2pcs.×0.5 to 2mm
*Use shielded wire for RS485 communication.
・ Output/Input
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)
◆Applicable ferrules (by Weidmuller)
Wire size
Name
For 1pc.
Part number
Name
For 2pcs. *
Part number
*Only for terminal block A and B. It cant be used for C.
7. For RS485 Connection
◆RS485 communication wiring
Upper device
Terminal block A Terminal block A
RS485 device
(upper)
8 9 10
SG ＋ － SG A＋ B－
Connect terminating resistors to the both end of the communication line including
a upper device. Connect terminating resistors (120Ω 1/2W or more) between [A+]
and [B-] of Eco-POWER METER connected the end of RS485 line.
◆Connection of KW9M and the other devices with 2-wire
Terminal
Terminal device
KW9M
except KW9M
Short-circuit [－] to [E].
＋ － E ＊Do not connect SG
shielded cable to [E].
terminal connection
Shielded cable
8. For Input Connection
◆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 =20V min. I =20mA min. I
CEO C
Use transistors with a residual voltage of less than 2V when the transistor
is ON.
*Short-circuit impedance should be less than 1kΩ.
Open-circuit impedance should be more than 100kΩ.
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.
3） 4）5）
4 5 6 7 8 9 10
B －
V2 V3 Vn NC SG A +
vacant RS485
4 5 6 7 8
IN1+ IN1－ IN2+ IN2－
Input 1 Input 2
4 5 6 7 8
CT2 CT3 CT3 CTn CTn
l k l k l
Terminal
Input voltage
No.
85～264VAC 85～264V
1 - 2
100～300VDC 100～300V
3 - 6
3 - 5 - 6
0～500VAC ［0～500V ］
3 - 5 - 6
3 - 4 - 5 - 6
･Stripping length: 7 to 8mm
2 (AWG20 to12)
2 (AWG20 to 14)
・ CT Input (Measured current)
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)
*Use applicable wire according to the measured current.
0.75mm 2 1.25mm 2 2mm 2 *
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
Correct
(upper)
8 9 10
SG A＋ B－ Terminal Terminal
device device
Not correct
120Ω
1/2W or more
Class D
Except terminals Terminal
Except KW9M KW9M terminal
＊Do not connect
shielded cable to [E].
A＋ B－ ＋ － E SG A＋ B－
Shielded cable
class D
120Ω
Shielded cable 1/2W or more
＊Connect
R
R
IN＋
5 or 7
Photo
-coupler C
IN－
6 or 8
=6µA max.
CBO
Output (rated capacity 30V AC/DC, 0.1A)
OUT
1 or 3
COM
2 or 4