UMG 96-PA / UMG 96-PA-MID / UMG 96-PA-MID+
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60
13.13.2 Digital outputs
Different functions can be assigned to the three
digital outputs:
·Digital output 1
1)
- Pulse output for active energy
- Output for timer switch
- Modbus remote output
·Digital output 2
- Pulse output for reactive energy
- Output for comparator group 1
- Output for timer switch
- Modbus remote output
·Digital output 3
- Output for comparator group 2
- Output for timer switch
- Modbus remote output
Using the configuration window of the GridVis
®
software, you can define the digital outputs in the
"
Peripherals
"
area:
Pulse output
Digital output 1
1)
and 2 can be used to output
pulses for counting active and reactive energy.
To do so, a pulse is applied to the output after a
certain, configurable amount of energy has been
reached.
NOTE
1)
The MID active energy function is assigned to
digital output 1 of the
UMG 96-PA-MID/MID+
.
To use a digital output as a pulse output, you
must make various settings in the configuration
menu using the GridVis
®
software:
·Pulse width
NOTE
Since the
Active energy meter
operates with a
reverse running stop, the device only sends pulses
when electrical energy is consumed.
Since the
Reactive energy meter
operates with a
reverse running stop, the device only sends pulses
when there is an inductive load.
Determine pulse valency
1. Set the pulse length according to the require-
ments of the connected pulse receiver. With a
pulse length of 30 ms, for example, the device
can emit a maximum of 60,000 pulses (see
table “Maximum number of pulses") per hour.
Determine 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
·Mode for the digital input: S0 output
·Output polarity: Normally open, normally closed
·Pulse valency
NOTE
The pulse duration of the
UMG 96-PA-MID/MID+
is 30 ms and is not configurable.
Pulse valency
The pulse valency indicates how much energy
(Wh or varh) corresponds to one pulse.
The pulse valency is determined by the maximum
connected load and the maximum number of
pulses per hour.
If you indicate the pulse valency with:
·With a positive sign, pulses are only output if the
measured value also has a positive sign.
·With a negative sign, pulses are only output if the
measured value also has a negative sign.
Fig.
Configuration of the digital outputs via the GridVis
®
software
