janitza UMG 96-PA, Руководство пользователя и технические данные

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UMG 96-PA / UMG 96-PA
MID
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52
13.12.2 Digital outputs
Different functions can be assigned to the three
digital outputs:
·Digital output 1
1)
- Pulse output for active energy
- Output for timer
- Modbus remote output
·Digital output 2
- Pulse output for reactive energy
- Output for comparator group 1
- Output for timer
- Modbus remote output
·Digital output 3
- Output for comparator group 2
- Output for timer
- Modbus remote output
From the configuration window of the GridVis
®
software, you can configure digital outputs from
the “
PerFpherals ” area:
Pulse output
Digital output 1
1)
and 2 can be used for the
output of pulses for counting active energy and
reactive energy. For this purpose, a pulse is
applied at the output after a certain configurable
energy quantity is reached.
NOTE
1)
The function MID active energy is dedicated
to digital output 1 of the UMG 96-PA
MID
.
In order to use a digital output as a pulse output,
you must make various settings using the
GridVis® software within the configuration menu:
·Pulse width
·Modbus for digital input: S0 output
·Output polarity: NO, NC
·Pulse value
NOTE
Since the active energy meter works with
a non-return device, pulses are only output
during consumption of electrical energy.
Since the reactive energy meter works with
a non-return device, pulses are only output
during an inductive load.
DetermFnFni the pulse value
1. Establish the pulse length according to the
requirements of the connected pulse receiver.
With a pulse length of e.g. 30 ms, the device
can emit a maximum number of 60,000 pulses
per hour (see table “Maximum number of
pulses”).
2. Calculate the maximum connected load.
Example:
Current transformer
= 150/5 A
Voltage L-N = max. 300 V
Power per phase = 150 A x 300 V
= 45 kW
Power with 3 phases = 45 kW x 3
Max. connected load = 135 kW
NOTE
The default setting for the pulse duration is 30 ms
for the MID device and cannot be adjusted!
Pulse value
The pulse value specifies how much energy (Wh
or varh) a pulse should correspond to.
The pulse value is determined by the maximum
connected load and the maximum number of
pulses per hour.
If you specify a pulse value with a:
positive sign, pulses are only output if the
measured value also has a positive sign.
·negative sign, pulses are only output if the
measured value also has a negative sign.
Fig. ConfiiurFni the dFiFtal outputs usFni the
GrFdVFs ® software