Data Sheet

GNM3D and GNM3T Series Communication Protocol
8
Application
Real measurement
Displayed values
Displayed energies
Notes
Easy connection
Mode
Quadrant I
A, W, var, L PF
kWh increases
kvarh increases
Measurement A or
MID model GNM3...
Quadrant II
A, W, -var, C PF
kWh increases
kvarh does not increase
Measurement A or
MID model GNM3...
Quadrant III
A, W, var, L PF
kWh increases
kvarh increases
Measurement A or
MID model
GNM3...
Quadrant IV
A, W, -var, C PF
kWh increases
kvarh does not increase
Measurement A or
MID model GNM3...
Bidirectional
Mode
Quadrant I
A, W, var, +L PF
kWh+ increases
kvarh+ increases
Measurement B in
the non-Mid model or
MID model GNM3D-
LP
Quadrant II
-A, -W, +var, -C PF
kWh- increases
kvarh+ increases
Measurement B in
the non-Mid model or
MID model GNM3D-
LP
Quadrant III
-A, -W, -var, -L PF
kWh- increases
kvarh- increases
Measurement B in
the non-Mid model or
MID model GNM3D-
LP
Quadrant IV
A, W, -var, +C PF
kWh+ increases
kvarh- increases
Measurement B in
the non-Mid model or
MID model GNM3D-
LP
2.3 Maximum and minimum electrical values in GNM3D and GNM3T SERIES
The maximum electrical input values are r
eported in the following table. If the input is above the
maximum value the display shows “EEE”.
Table 2.1-1
The overflow indication “EEE“ is displayed when the MSB value of the relevant variable is 7FFFFFFFh
(word order FFFF 7FFF).
GNM3T
Max value Min value
GNM3D
Max value Min value
VL-N 485V 0 299V 0
VL-L 840V 0 518V 0
A
6,5A
(displ. value = 6.5 A x CT ratio)
0 78A 0
VT 1000 1 / /
CT 1000 1 / /
Note: The product (CT ratio)x(VT ratio) shall be automatically limited to prevent overflow of kW
indication on the meter (max power = 9999 kW).