Siemens SINAMICS G150 Operating Instructions Manual page 116

Electrical installation
4.10 Signal connections
X541: 4 non-floating digital inputs/outputs
Table 4- 28 Terminal strip X541
Terminal
6
5
4
3
2
1
DI/DO: Digital input/output: M: Electronics ground
1)
Max. connectable cross-section: 1.5 mm
Note
An open input is interpreted as "low".
When externally generated 24 V DC signals are connected to a digital input, the ground
reference of the external signal must also be connected.
CAUTION
Due to the limitation of the aggregate of the output currents an over-current can cause a
short circuit on an output terminal or even intrusion of the signal of a different terminal.
114
Designation
1)
M Electronics ground
DI/DO 11 As input:
Voltage: -3 ... 30 V
DI/DO 10
Current drain, typical: 10 mA at 24 V DC
DI/DO 9
As output:
DI/DO 8
The summation current of the four outputs (including the currents of the
inputs) is limited to 100 mA (continued short-circuit proof) in the delivery
condition.
P24 Auxiliary voltage: +24 V DC
Max. total load current of +24 V auxiliary voltage of terminal blocks X540 and
X541 combined: 150 mA
2
Technical data
Operating Instructions, 03/2012, A5E03263466A
Converter cabinet units