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Functions
3.7 Digital Input and Output Interface
SICAM P27, 3-phase Harmonic Power Meter, User Manual
E50417-H8940-C560-
, Release Date
18
3.7
Digital Input and Output Interface
Power Pulse Output
This meter provides one active power pulse output, with internal opto-isolation, pulse output width (80±20) ms,
maximum allowable passing current 10 mA (DC) and operating voltage range 5 V to 80 V (DC).
Figure 3-1
Circuit Diagram of Power Pulse Output Interface
Binary Input Interface
This product is provided with 2-digit binary inputs interface based on passive dry contact. Terminals are identi-
fied as DI1, DI2 and COM. COM is the common terminal.
Figure 3-2
Circuit Diagram of Binary Input Interface
Relay Output Interface
This product is provided with one relay output interfaces for alarm indication or protection control output in many
conditions. Electric parameter of internal relay: AC 250 V/DC 30 V, 3 A.
Figure 3-3
Circuit Diagram of Relay Output Interface
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