User Manual
Section 5
GFK-2958L
May 2021
Detailed Description of I/O Modules
376
Name
Description / data width
Options
1)
Default
connected phases
Apparent power at the
fundamental
Apparent power L1 (39) /
L2 (40) / L3 (41)
Apparent power total at the
fundamental of the
connected phases
Apparent power total (42)
Received active energy
Received act. energy
counter L1 (43) / L2 (44) /
L3 (45)
Delivered active energy
Delivered act. energy
counter L1 (46) /L2 (47) /
L3 (48)
Works only with “Harmonic
select “
= 1
React. energy leading
counter L1 (49) / L2 (50) /
L3 (51)
Works only with “Harmonic
select “
= 1
React. energy lagging
counter L1 (52) / L2 (53) /
L3 (54)
Bit 0: 1 = Phase sequence L1-L2-
L3 detected
Status (55)
Bit 1: 1 = Phase sequence L1-L3-
L2 detected
Bit 2: 1 = Voltage at L1
Bit 3: 1 = Voltage at L2
Bit 4: 1 = Voltage at L3
The channel becomes enabled
by parameterizing
a measuring value
disabled (56)
disabled
1)
Values in brackets for Modbus-TCP (firmware version 02.03.00 and higher), EtherCAT and EtherNet/IP via module
parameter class.
Calculation of reactive power
𝑄 = √𝑆
2
− 𝑃
2
Calculation of current imbalance
𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝐼𝑚𝑏𝑎𝑙𝑎𝑛𝑐𝑒 =
max (|𝐼
𝑟𝑚𝑠
𝐿
1
− 𝐼
𝑟𝑚𝑠
𝐴𝑣𝑒𝑟𝑎𝑔𝑒|, |𝐼
𝑟𝑚𝑠
𝐿
2
− 𝐼
𝑟𝑚𝑠
𝐴𝑣𝑒𝑟𝑎𝑔𝑒|, |𝐼
𝑟𝑚𝑠
𝐿
3
− 𝐼
𝑟𝑚𝑠
𝐴𝑣𝑒𝑟𝑎𝑔𝑒|)
𝐼
𝑟𝑚𝑠
𝐴𝑣𝑒𝑟𝑎𝑔𝑒
