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Device handbook SINEAX AMx000
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5.8 Digital outputs
The device has two standard digital outputs for which an external 12 / 24 VDC power supply is required.
The power supply shall not exceed 30V DC!
AM1000
AM2000/AM3000
Usage as digital output
►
Alarm output
►
State reporting
►
Pulse output to an external counter (acc. EN62053-31)
►
Remote controlled output
AM1000
AM2000/AM3000
1)
Recommended if input impedance of
counter > 100 kΩ
Driving a counter mechanism
The width of the energy pulses can be selected within a
range of 30 up to 250ms, but have to be adapted to the
external counter mechanism.
Electro mechanical meters
typically need a pulse width of
50...100ms.
Electronic meters
are partly capable to detect pulses in the
kHz range. There are two types: NPN (active negative edge)
and PNP (active positive edge). For this device a PNP is
required. The pulse width has to be
≥
30ms (acc. EN62053-
31). The delay between two pulses has to be at least the
pulse width. The smaller the pulse width, the higher the
sensitivity to disturbances.
Driving a relay
Rated current
50 mA (60 mA max.)
Switching freq. (S0)
≤ 20 Hz
Leakage current
0,01 mA
Voltage drop
< 3 V