Siemens SINUMERIK 840D sl Manual page 95

Table 11-6 Pin assignment for X122
Terminal
1
2
3
4
5
6
7
8
9
10
11
12
1) DI: digital input; DI/DO: Bidirectional digital input/output; M: Electronics ground M1: Reference ground
Note
An open input is interpreted as "low".
The "rapid inputs" can be used for positioning measurement and as probe inputs depending
on the terminal assignment used.
To enable digital inputs (DI) 0 to 3 to function, terminal M1 must be connected. This can be
done as follows:
Connect the coupled-motion ground reference of the digital inputs or provide a jumper to
terminal M. (Notice! This removes the galvanic isolation for these digital inputs.)
NCU
Manual, 03/2010, 6FC5397-0AP10-3BA0
Designation
1)
DI 0
DI 1
DI 2
DI 3
M1
M
DI/DO 8
DI/DO 9
M
DI/DO10
DI/DO 11
M
Technical specifications
Voltage: -3 V to 30 V
Typical current consumption: 10 mA at 24 V DC
Isolation: The reference potential is terminal M1
Signal level (incl. ripple)
High signal level: 15 V to 30 V
Low signal level: -3 V to 5 V
Signal propagation times:
L → H: approx. 50 μs
H → L: approx. 100 μs
As input:
Voltage: -3 V to 30 V
Typical current consumption: 10 mA at 24 V DC
Signal level (incl. ripple)
High signal level: 15 V to 30 V
Low signal level: -3 V to 5 V
Terminal numbers 8, 10, and 11 are "rapid inputs"
Signal propagation times for inputs/"fast inputs":
L → H: approx. 50 μs/5 μs
H → L: approx. 100 μs/50 μs
As output:
Voltage: 24 VDC
Max. load current per output: 500 mA continuous short circuit-
proof
Spare Parts/Accessories
11.2 NX10/15
95