WAGO SYSTEM 750 - Page 40

40 Function Description WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
Minimum value active power L2 Int16 0.1W / LSB 0.5W / LSB
Minimum value active power L3 Int16 0.1W / LSB 0.5W / LSB
Energy
Active energy L1 UInt16
Setup with WAGO-I/O-CHECK
or in Register 35
Active energy L2 UInt16
Setup with WAGO-I/O-CHECK
or in Register 35
Active energy L3 UInt16
Setup with WAGO-I/O-CHECK
or in Register 35
Frequency
Supply network frequency L1 UInt16 0.1Hz / LSB 0.1Hz / LSB
Supply network frequency L2 UInt16 0.1Hz / LSB 0.1Hz / LSB
Supply network frequency L3 UInt16 0.1Hz / LSB 0.1Hz / LSB
Power factor
cos phi L1
Int16
0.01
0.01
cos phi L2 Int16 0.01 0.01
cos phi L3
Int16
0.01
0.01
DC measured values
DC voltage L1 - N UInt16 0.1V / LSB 0.1V / LSB
DC voltage L2 - N UInt16 0.1V / LSB 0.1V / LSB
DC voltage L3 - N UInt16 0.1V / LSB 0.1V / LSB
DC current L1 UInt16 0.001A / LSB 0.005A / LSB
DC current L2 UInt16 0.001A / LSB 0.005A / LSB
DC current L3 UInt16 0.001A / LSB 0.005A / LSB
Power (DC current) L1
Int16
0.1W / LSB
0.5W / LSB
Power (DC current) L2 Int16 0.1W / LSB 0.5W / LSB
Power (DC current) L3
Int16
0.1W / LSB
0.5W / LSB
The format of the measured values with sign (Int16) is the two's complement.
Generally, use the following equation to calculate the measured values from the
process values:
Measured value = Process value x Scaling factor PI
Examples of Calculating the Measured Values
Voltage
750-493
750-493/000-001
Process value
0x07D0 (2000)
0x074A (1866)
Scaling factor PI
0.1 V / LSB
0.1 V / LSB
Equation
Measured value = Process value x Scaling factor PI
Measured value
200.0 V
186.6 V
Frequency
750-493
750-493/000-001
Process value
0x01F5 (501)
0x0257 (599)
Scaling factor PI
0.1 Hz / LSB
0.1 Hz / LSB
Equation
Measured value = Process value x Scaling factor PI