MAN 06 033774 – technical_guide_ DIRIS_A40_A41_C.doc40/Z41 - B 3/27
CHAPTER 1: PULSE OUTPUTS MODULE
The DIRIS A can be equipped with 2 pulse outputs modules easily affected to active energy in kWh (EA±), reactive in kvarh (ER±)
and apparent in kVAh (ES).
The pulse outputs are configurable, with a rate of pulses of 0,1k; 1k; 10k; 100k or 1000k, and a pulse duration from 100 ms to 900
ms.
1.1 - Application:
Visualisation of positive active energy meter kWh (EA+) with PLC.
It is recommended not to exceed 1 pulse per second.
Example 1: Instantaneous power displayed by the DIRIS: 105kW
Calculation of the minimum pulse rate:
105 000 W / 3600 s = 29,17W/s
In this case a pulse weight of 100 Wh can be chosen.
DIRIS configuration (see instruction manual: 876 584 or 876 585):
Pulse output type : OUT 1 TYPE = EA+ (positive active energy)
Pulses weight = Out 1 VAL = 0,1 (0,1 kWh)
Pulses duration = Out 1 DUR = 100 (100 ms)
Example 2 : Instantaneous power displayed by the DIRIS: 1895 kW
Calculation of the minimum pulse rate:
1 895 000W / 3600s = 526.3W/s
In that example, a pulse weigh of 100Wh would be too low (that would mean 5 to 6 impulses per second) it is
necessary to program a pulse weigh of 1kWh.
DIRIS configuration (see instruction manual: 876 584 or 876 585):
Pulse output allocation : OuT 1 TYPE = EA+ (positive active energy)
Pulses weight = Out 1 VAL = 1 (1kWh)
Pulses duration = Out 1 DUR = 100 (100ms)
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