Reference Manual
Power Analyzer EMM5
Rev. 11
2018-07
16
4.6.5
Impulse (optional)
This menu item can only be seen, if the device is equipped with the optional impulse outputs. These 4 transistor outputs
(galvanic isolation by optocouplers) are dedicated to the counters. With these outputs e. g. external counters can be
driven. The following schematic shows the correct connection:
The following impulse outputs are available at the referring connectors:
-
Active power sum import (clamp 13/14)
-
Active power sum export (clamp 23/24)
-
Reactive power sum inductive (clamp 33/34)
-
Reactive power sum capacitive (clamp 43/44)
In the menu the amount of pulses can be set for the dedicated impulse outputs. Select one pulse output with the "
"
and "
"-keys and after pushing "
" the value can be adjusted. The range is between 1 and 10000 pulses/Mwh or Mvarh.
The adjusted value should be selected in the way, that 4 pulses per second are not permanently exceeded. Short term
exceeding is possible, because too many accumulated pulses are stored. But durable you have to ensure, that the
storage can be executed completely.
Worked sample:
P = 1,050 MW, 10000 pulses / MWh:
produces 1,050 MW * 10000 pulses / MWh = 10500 pulses / hour
produces (10500 pulses / hour) / (3600 sec / h) = 2,92 pulses / sec
setting allowed
Important: If you use two tariffs (option – DM) is to be noted that the output pulse always exits the currently used tariff.
4.6.6
Modbus (optional)
This menu item can only be seen, if the device is equipped with the optional Modbus interface. Select one item by the
"
" and "
"-keys and set it with the "+"-key.
