Reading Command Examples - Algodue ELETTRONICA UPM209 Manual Del Usuario

is the result of a multiplication between 290V and phase X current full scale (X=1, 2 or 3).
For the current full scale value to be used in the formula, consider the following values according to the selected
instrument scale:
Scale 500A > FS = 700A
A
Scale 4000A > FS = 5600A
A
Scale 20000A > FS = 28000A
A
Example: formula for phase 1 power full scale
FS = PT * FS
P1,S1,Q1 pri A1
The system power full scale is the result of a multiplication between 3 and PT primary and max phase current
full scale. If the PT primary and secondary values are set to 1 (direct connection), the system power full scale
is the result of a multiplication between 3 and 290V and max phase current full scale.
Example: formula for system power full scale
FS = 3 * PT * FS
P∑,S∑,Q∑ pri

5. READING COMMAND EXAMPLES

In this chapter, some reading command examples are described according to the used communication protocol
86
if PT =PT =1 > FS
pri sec
if PT =PT
AMAX pri sec
= 290V * FS
P1,S1,Q1 A1
=1 > FS = 3 * 290V * FS
P∑,S∑,Q∑ AMAX
MODBUS RTU/ASCII, TCP