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

Parameter Setting Operations
3-19
IM 77C01E01-01E
1
2
3
4
5
A
I
3.10 Setting the “Indicator-out” Mode and Locking
Parameters
Setting the Indicator-out Mode
This section explains how to set the indicator-out mode by taking as an example the case when the indicator-
out mode is changed to ON and the indicator-out mode wait time to 5 min, from their respective initial values.
Operation
Operation
Display Setting Menu screen
Indicator-out Mode Setting screen
Indicator-out Mode Setting screen
3
Indicator-out Mode Wait
Time screen
8
Indicator-out Mode Wait
Time Setting screen
9
Indicator-out Mode
Wait Time screen
4
6
7
5
Indicator-out Mode screen
Current value
VT Ratio screen
2
Measured Value screen
1
The parameter (VT ratio)
appears.
The screen changes to the one
for setting the parameter
.
Indicator-out Mode screen
The parameter
(Indicator-out mode) appears.
Parameter (indicator-
out mode wait time) is
displayed.
The screen changes into a
screen for setting parameter
.
Hold down for at
least 3 seconds.
Using or ,
show .
Press once.
Press once.
Using or ,
select the setpoint.
Press once blink
the setpoint.
Setpoint
Press once while
the setpoint is blinking.
The setpoint is confirmed and the PR300
returns to the Indicator-out Mode screen.
The setpoint is confirmed and the PR300 returns
to the Indicator-out Mode Wait Time screen.
Indicator-out mode setting
completed.
Indicator-out mode wait time
setting completed.
Press once.
Press once.
Using or ,
change the setpoint.
Press once to
blink the setpoint.
Press once while
the setpoint is blinking.
To return to the Display Setting Menu
screen, press .
To return to the Measured Value
screen, hold down .
If you do not operate any key for more
than 5 minutes on the Parameter
screen, the PR300 automatically
returns to the Measured Value screen.
To re-set the parameter:
Press any key other than
while all digits of the
setpoint are blinking.
The PR300 returns to the initial
setting screen.










