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Description
2.4 Digital inputs and outputs
28
PAC3120 and PAC3220
Equipment Manual, 10/2019,
L1V30425208F-01
①
External power supply
②
Input electronics
③
Load
Figure 2-5
Block diagram: Digital outputs
Wiring
Both digital outputs are passive and implemented exclusively as switches.
Figure 2-6
Block diagram: Digital outputs
Implementation of the pulse function corresponds to the IEC 62053-31 standard.
Pulse length, turn-off time
①
Pulse length
②
Turn-off time
Figure 2-7
Pulse length and turn-off time
●
Pulse length:
Time for which the signal at the digital output is "high". The minimum pulse length is
30 ms and the maximum 500 ms.
●
Turn-off time:
Time for which the signal at the digital output is "low". The turn-off time depends on the
measured energy, for example, and can be days or months.
●
Minimum turn-off time:
The minimum turn-off time corresponds to the programmed pulse length. 30 ms is the
absolute minimum.
Summary of Contents for SENTRON PAC3120
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Page 8: ...Table of contents 6 PAC3120 and PAC3220 Equipment Manual 10 2019 L1V30425208F 01 ...
Page 110: ...Technical data 10 2 Labeling 108 PAC3120 and PAC3220 Equipment Manual 10 2019 L1V30425208F 01 ...
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