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UMG 801 www.janitza.de
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The device has an analog output which:
·Supplies a current of up to 20 mA.
·Requires an external 24 V DC power supply for
operation.
After activating the analog output, an assistant
in the “Peripherals" section of the "Configura-
tion" window in the GridVis
®
software, guides
you through the configuration with the following
settings and functions:
1. Segment selection list
Selection of the device (basic device/modules).
2. Measurement Group selection list -
Selection of the measurement group of the
respective device.
3. Measured Value selection list -
Selection of the measured value.
4. Phase/Channel -
Phase/channel whose pulse is used for the
output.
5. Type of measured value -
See description of "Pulse output".
6. Output signal
4 - 20 mA or 0 - 20 mA.
7. Start value
See "Principle of analog output examples".
8. End value
See "Principle of analog output examples".
13. Analog outputs
20 mA
4 mA
230 V
Start value
250 V
End value
Principle of analog output examples:
Monitoring of voltage
(output range 4 - 20 mA)
:
Allocation active power L1
(output range 4 - 20 mA):
·With an active power of 500 W, the current at the
analog output is 4 mA; with an active power of
1000 W --> 20 mA.
The measured active power is proportional to the
current at the analog output.
Allocation of the calculated active power factor
cos(math.) (output range 4 - 20 mA):
·Monitoring of the active power factor cos ϕ
(math.) with:
cos
ϕ (math.) > 0 active power, applied.
cos ϕ (math.) < 0 active power, delivered.
20 mA
4 mA
500 W
Start value
1000 W
End value
20 mA
4 mA
cos
ϕ
= -1
Start value
cos ϕ = 1
End value
12 mA
0