Energy Meter Manual
Table Of Contents
- Introduction
- Notices
- Checking the Package
- Checking the Model and Suffix Codes
- Contents
- Chapter 1 Installation and Wiring
- 1.1 Installation with the ANSI 4-inch Round Form or JIS 110-square Instrument Size
- 1.2 Installation with the DIN 96-square Instrument Size
- 1.3 Wiring
- Crimping Terminal Recommendations
- Single-phase two-wire system (voltage input, current input, power supply)
- Single-phase three-wire system (voltage input, current input, power supply)
- Three-phase three-wire system (voltage input, current input, power supply)
- Three-phase four-wire system (voltage input, current input, power supply)
- Three-phase four-wire system (2.5 element) (voltage input, current input, power supply)
- Other Wiring
- 1.4 Attaching the Dust Cover and Terminal Cover
- Chapter 2 Preparations before Starting Measurement (Set up the PR300 First)
- Chapter 3 Parameter Setting Operations
- 3.1 Basic Parameter Setting Operations
- 3.2 Setting the VT and CT Ratios
- 3.3 Setting the Integrated Low-cut Power
- 3.4 Setting RS-485 Communication Conditions
- 3.5 Setting Ethernet Communication Conditions
- 3.6 Setting Pulse Output Conditions
- 3.7 Setting Analog Output Conditions
- 3.8 Setting Demand Measurement Conditions
- 3.9 Setting the Measured Value Display Pattern
- 3.10 Setting the “Indicator-out” Mode and Locking Parameters
- Chapter 4 Operation for Display of Measurement Items and Measurement Method
- 4.1 Measurement Items
- 4.2 Switching Display Pattern
- 4.3 Displaying Measured, Instantaneous, and Maximum/Minimum Values
- Example Display and Measuring Ranges of Active Power (Regenerative Power)
- Example Display and Measuring Ranges of Reactive Power
- Example Display and Measuring Ranges of Apparent Power
- Example Display and Measuring Ranges of Voltage
- Example Display and Measuring Ranges of Current
- Example Display and Measuring Ranges of Power Factor
- Example Display and Measuring Ranges of Frequency
- How to Switch between Instantaneous Value, Maximum Value, and Minimum Value
- 4.4 Phase Switching for Voltage and Current
- 4.5 Displaying Energy Values
- 4.6 Resetting Measured Values
- 4.7 Demand Measurement (Optional Measuring Function)
- Chapter 5 Troubleshooting
- Appendix
- Appendix 1 Specifications of PR300
- Measuring Function
- Power Items and Equations
- Input Specifications
- Digital Input Specifications
- Analog Output Specifications (additional output function)
- Pulse Output Specifications (additional output function)
- Demand Alarm Output Specifications (optional measuring function)
- Communication Specifications
- Standard Performance
- Safety and EMC Standards
- Environmental Conditions
- Mounting and Shape
- Appendix 2 System Reset
- Appendix 3 Parameter Map
- Appendix 4 Parameter List
- Appendix 5 Alphanumeric Characters Table for 7-segment LED
- Appendix 1 Specifications of PR300
- Index
- A
- C
- D
- E
- H
- I
- M
- O
- P
- R
- S
- T
- V
- W
- Wiring diagram
- Single-phase two-wire system
- Single-phase three-wire system
- Three-phase three-wire system
- Three-phase four-wire system
- Three-phase four-wire system (2.5 element)
- Analog output
- Demand alarm output
- Demand alarm release
- Ethernet communication
- Integration control signal
- Palse output
- RS-485 communication
- Wiring diagram
1-6
IM 77C01E01-01E
1.3 Wiring
Single-phase two-wire system (voltage input, current input, power supply)
1
2 3
45
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
a
b
c
d
e
f
Lⴙ
Nⴚ
PE
Power supply
Power supply voltage
100-240V AC 10% or
130-300V DC 15%
Power-source side
12
K
L
CT
Load side
Fuse
k
l
VT
U
V
1L
1S
P1
P2
Refer to
“Other Wiring”
u
v
NOTE
Do not ground the input
circuit when connecting
voltage and current directly
without using VT and CT.
Single-phase three-wire system (voltage input, current input, power supply)
1
23
4 5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
u
u
v
v
Lⴙ
Nⴚ
PE
Power supply
Power supply voltage
100-240V AC 10% or
130-300V DC 15%
Power-source side
1N2
K
L
CT
K
L
CT
Load side
Fuse
VT
k
l
k
l
1L
1S
2L
2S
P0
P2
P1
U
U
V
V
Refer to
“Other Wiring”
NOTE
Do not ground the input
circuit when connecting
voltage and current directly
without using VT and CT.
a
b
c
d
e
f
Three-phase three-wire system (voltage input, current input, power supply)
1
23
4 5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Lⴙ
Nⴚ
PE
Power supply voltage
100-240V AC 10% or
130-300V DC 15%
Power-source side
123
K
L
CT
K
L
CT
Load side
Fuse
VT
A
(R)
B
(S)
C
(T)
k
l
k
l
1L
1S
3L
3S
P1
P3
P2
U
U
V
V
u
u
v
v
Refer to
“Other Wiring”
NOTE
Do not ground the input
circuit when connecting
voltage and current directly
without using VT and CT.
a
b
c
d
e
f
Power supply