2857-570/024-001
Properties
Product manual | Version: 2.0.0
23
3-Phase Power Measurement Module, 1 A
Property
Description
Energy
• Active energy E
Lx
• Active energy import E
Lx
• Active energy export E
Lx
• Active energy total
• Active energy import, total
• Active energy export, total
• Reactive energy E
Lx
• Inductive active energy E
Lx
• Capacitive active energy E
Lx
• Reactive energy total
• Reactive energy inductive total
• Reactive energy capacitive total
• Apparent energy E
Lx
Frequency
• Line frequency f
Lx
• Min./Max. Line frequency f
Lx
Phase angle
• phi L
x
Power factor (PF)
• Cos phi PF
Lx
•Power factor PF
Lx
• Power factor PF
Lx
Harmonics analysis up to 41st harmonic
• Current (rms)
• Voltage (rms)
• HD/THD Current
• HD/THD Voltage
Measurement inaccuracies
Voltage
5)
≤ 0,3 % of measurement range final value (max. value
Current
≤ 0,5 % of measurement range final value (max. value)
Active power
≤ 0,5 % of measurement range final value (max. value
Phase angle
± 1,0°
Frequency
± 0,01 Hz
Harmonic analysis measurement values
≤ 1 %
5)
refers to: U
Lx-Ly
690 V / U
Lx-N
400 V
3.6.5 Communication
Table 9: Technical Data – Communication
Property
Description
Factory setting
Fieldbus protocol
Modbus
®
RTU/RS-485
Bus length
Maximum 1200 m (de-
pending on transmission
rate)
Communication interfaces “X1 IN” und “X2 OUT”
2 × RJ-45 ports for forming
daisy chain configuration
Configuration interface “Config”
4-pole male terminal, se-
rial, for configuring and vi-
sualizing the measurement
value with PC via commu-
nication cable 750-923
