YOKOGAWA PR720, Руководство пользователя

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IM 77C01E31-01EN
SFLC-212-181
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1. Product outline
1.1 Usage of product
This single unit can measure and monitor voltage × 3, current × 3, demand- current ×3, active -power, demand active power,
reactive-power, power-factor, frequency, watt-hour, var-hour.
The measurement monitor of an initial power receiving circuit, an energy conservation power monitor, a demand current
measurement monitor, etc. are adapted for various usages from a low tension circuit to a high tension circuit. The
intensive monitor doubled with the system (analog output, alarm output, pulse output, external operation input) addendum
is possible.
1.2 Features of product

It is common type product of 3 - phase 3 -wire, single-phase 2 -wire, single- phase 3 -wire. It's possible to share stock.

Bar graph 1 measurement and digital 4 measurement are displayed simultaneously.

Modbus (RTU mode) output and a pulse output and a contact-output can be taken out.
And, about an output factor, it can select by setting.

External operation inputs are possible of reset. Choice of an alarm outpu t, the maximum/minimum value, and an alarm
output, and the maxim um/minimum value is possible at setting.

Power supply is AC 85 to 264V , DC 80 to 143V ( for both AC and DC uses).

The mounting method of this unit is compatible with the mounting method of conventional 110 square mechanical
meter. This unit is mounted at 2 diagonal points.

Integrated value of Wh and varh can indicate ex pansion to 3 rd digit below the decimal point.

A t idal current measurement (output 2 quadrant) change is possible for var and cosφ .

A backlight function is equipped. Selection of backlight-on, backlight-off, and auto backlight-off and setting of
brightness (only white backlight) are possible. Automatic turning off the lights at the time of non-operation can be
established.
1.3 Model and suffix codes
Model Suffix Codes Descriptions
PR720 Power and Energy Meter (with terminal cover)
Suffix
Codes
- 3
Universal three-phase three-wire system
(single-phase two-wire, single-phase three-wire, and three-phase three-wire
systems)
2 Universal voltage input ( 150V/300V ) / 5A
2 1 digital input, 1 pulse output
0 RS-485 communication
3 Demand measurement
-6 100- 240V AC±10 % ( 50/60Hz ), 80- 143V DC
U U, V and W indications
-0 Always 0