Siemens NCU 7 0.2 Series Manual page 77

Digital inputs/outputs on X122/X132
Table 7- 26
Parameters
Voltage
Typical power consumption
Signal level (including ripple)
Pins 8, 10 and 11 are "rapid inputs"
Signal propagation delays of inputs/"rapid inputs"
Voltage
Maximum load current per output
Note
An open input is interpreted as "low".
Only "rapid inputs" can be used as inputs for BEROs and probes.
Terminals G1 or G2 must be connected for the digital inputs to work. This can be done as
follows:
Connect the coupled-motion ground reference of the digital inputs, or provide a jumper to
terminal G. (Notice! This removes the galvanic isolation for these digital inputs.)
NCU 7x0.2
Manual, 02/2011, 6FC5397-0AP20-0BA0
Technical data of the digital inputs/outputs of X122/X132
Values
As an input
-3 V to 30 V
10 mA at 24 V DC
High signal level: 15 V to 30 V
Low signal level: -3 V to 5 V
L → H: 50 μs/5 μs
H → L: 100 μs/50 μs
As an output
24 V DC
500 mA
Connecting
7.9 Digital inputs/outputs
77