janitza UMG 96-PA, Руководство пользователя

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UMG 96-PA www.janitza.de
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Determine pulse value
1. Set the pulse length according to the re-
quirements of the connected pulse receiv-
er. For a pulse length of e.g. 30 ms, the
device can issue a maximum number of
60,000 pulses (see Table "Maximum Pulse
Number") per hour.
2. Determining 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 in 3 phases = 45 kW x 3
Maximum connection power = 135 kW
3. Calculate the pulse value:
Pulse value =
Maximum connected load
Max. number of pulses/h
[Pulses/Wh]
Pulse value = 135 kW / 60000 pulses/h
Pulse value = 0.00225 pulses/kWh
Pulse value = 2.25 pulses/Wh
Fig.: Fig.: Connection example for wiring the
pulse output.
+ -
230V AC
24V DC
External
operating voltage
1.5k
Data col-
lector
UMG 96-PA
Switch and pulse outputs
17
18
19
Digital Ouput 1
Digital Ouput 2
+24V=
m
CAUTION!
Measurement errors in use
as pulse output
When using the digital outputs as a pulse
output, measurement errors may result from
residual ripple.
So use a power adapter whose residual
ripple is less than 5% for the supply volt-
age to the digital inputs and outputs.