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
A-8
IM 77C01E01-01E
Appendix 1 Specifications of PR300
Environmental Conditions
Normal operating conditions
Warm-up time At least 30 minutes
Ambient temperature 0 to 50°C (reference temperature: 232°C)
Temperature change 10°C/h or less
Ambient humidity 20 to 90% RH (no condensation)
Magnetic field 400A/m or less
Continuous vibration 10 to 60 Hz, 0.035 mm, 75 minutes; 60 to 150 Hz, 4.9 m/s
2
, 75 minutes
Short-time vibration 14.7 m/s
2
for 15 seconds or less
Shock 98 m/s
2
or less (for shock time of 11 ms)
Installation Indoor installation only
Mounting position Vertical surface mounting only
Installation altitude 2000 m or less
Effect on operating conditions
Effects of ambient temperature Analog output: 0.05% of F.S./°C or less
Effects on power supply voltage variations Analog output: 0.05% of F.S./°C or less
Transport and storage conditions
Temperature -20 to 70°C
Humidity 5 to 95% RH (no condensation)
Shock and dropping of package
90 cm (provided that an external packing box is used)
Mounting and Shape
Materials Casing Polycarbonate resin (PC), UL94 V-0
Terminal block Polybutylene terephthalate (PBT), UL94 V-0
Terminal cover Polyamide resin (PA6), UL94 V-2
Mounting method Panel mounting
Connection Method M3 screws for terminal connections (analog output, pulse output, demand alarm output, digital
input, and RS-485 communication)
M4 screws for terminal connections (voltage/current input and power supply)
RJ45 connection (Ethernet communication, when the Ethernet communication function is specified)
External Dimensions (including a terminal cover)
110 110 128 mm (H W D)
96 96 126 mm (H W D)
Weight Approx. 600 g (when accessories such as mounting bracket are attached)