Siemens SINUMERIK 840D sl Equipment Manual page 81

Parameters
Signal level (including ripple)
Input delay (typ.)
Digital inputs/outputs at X122 / X132 / X142
Table 7-30
Parameters
Voltage
Typical current consumption
Signal level (including ripple)
Input delay (typ.) of inputs / "rapid inputs"
Voltage
Maximum load current per output
Output delay (typ./max.)
Switching frequency
max. lamp load
Data for: V
1)
NOTICE
Ensuring the function of the digital inputs
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 ground reference of the digital inputs.
• A jumper to terminal M (note that these digital inputs are then no longer electrically
NCU 7x0.3B PN
Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1
Technical data of the digital inputs/outputs of X122 / X132 / X142
1)
= 24 V; load 48 Ω; High = 90 % V
cc
isolated).
Values
High signal level: 15 V to 30 V
Low level: -3 V to 5 V
L → H: 50 μs
H → L: 100 μs
Values
As an input
-3 V to +30 V DC
9 mA at 24 V DC (only with NCU 710.3B)
2.5 mA at 24 V DC (only with NCU 720.3B/ 730.3B)
High signal level: 15 V to 30 V
Low 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 continuously short circuit-proof
L → H: 150 μs / 400 μs
H → L: 75 μs / 100 μs
for resistive load: max. 100 Hz
for inductive load: max. 0.5 Hz
for lamp load: max. 10 Hz
5 W
; Low = 10 % V
out out
Connecting
7.10 Digital inputs/outputs
81