User Documentation

Product Installation / Operation, ACT20X-HDI-SDO (NAMUR Pulse Isolator)
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Illustration 7-3: Applications
Input NAMUR / Mechanical Switch with Series and Parallel Resistance
NAMUR sensor, according to EN 60947-5-6
Mechanical Switch, Series resistance (R
S
) nom. 750 Ω
Mechanical Switch, Parallel resistance (R
P
) nom. 15 kΩ
Frequency range 0…5 kHz
Min. pulse length > 0.1 ms
Resistance nom. 1 kΩ
Trigger level, signal < 1.2 mA, > 2.1 mA
Trigger level, cable fault < 0.1 mA, > 6.5 mA