Schneider Electric PM870 Manual De Usuario
© 2011 Schneider Electric. All Rights Reserved.
PowerLogic
TM
Series 800 Power Meter
63230-500-225A2
Chapter 4—Metering Capabilities
3/2011
36
The power meter also provides an additional energy reading that is only available over the
communications link:
communications link:
•
Four-quadrant reactive accumulated energy readings. The power meter
accumulates reactive energy (kVARh) in four quadrants as shown in Figure 4–7. The
registers operate in unsigned (absolute) mode in which the power meter accumulates
energy as positive.
accumulates reactive energy (kVARh) in four quadrants as shown in Figure 4–7. The
registers operate in unsigned (absolute) mode in which the power meter accumulates
energy as positive.
Energy-Per-Shift (PM810 with PM810LOG)
The energy-per-shift feature allows the power meter to group energy usage based on three
groups: 1st shift, 2nd shift, and 3rd shift. These groups provide a quick, historical view of
energy usage and energy cost during each shift. All data is stored in non-volatile memory.
groups: 1st shift, 2nd shift, and 3rd shift. These groups provide a quick, historical view of
energy usage and energy cost during each shift. All data is stored in non-volatile memory.
Configuration
The start time of each shift is configured by setting registers using the display or by using
PowerLogic software. Table 4-5 summarizes the quantities needed to configure energy-
per-shift using register numbers.
PowerLogic software. Table 4-5 summarizes the quantities needed to configure energy-
per-shift using register numbers.
Figure 4–7: Reactive energy accumulates in four quadrants
P
LSD1
1017
1
watts negative (–)
vars positive (+)
vars positive (+)
watts positive (+)
vars positive (+)
vars positive (+)
watts negative (–)
vars negative (–)
vars negative (–)
watts positive (+)
vars negative (–)
vars negative (–)
Reactive
Power In
Power In
Real
Power
In
Power
In
Reverse
Power Flow
Power Flow
Normal
Power Flow
Power Flow
Quadrant
2
Quadrant
1
Quadrant
3
Quadrant
4
Table 4–4: Energy-per-shift recorded values
Category
Recorded Values
Time Scales
•
Today
•
Yesterday
•
This Week
•
Last Week
•
This Month
•
Last Month
Energy
•
Real
•
Apparent
Energy Cost
•
Today
•
Yesterday
•
This Week
•
Last Week
•
This Month
•
Last Month
User Configuration
•
Meter Reading Date
•
Meter Reading Time of Day
•
1st Day of the Week