Siemens SINAMICS G150, Operating Instructions Manual

Page: 171 / 680

Electrical installation
4.10 Other connections
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
171
Note
Open input
An open input is interpreted as "low".
The power supply and the digital inputs/outputs are isolated from the Control Unit.
Note
Transient voltage interruptions
If the 24 V supply is briefly interrupted, then the digital outputs are deactivated during this
time.
X482 Analog inputs/outputs
Table 4- 58 Terminal block X482
Terminal Designation
1)
Technical data
1 AI 0+ Analog inputs (AI)
Voltage: -10 … +10 V; R
i
: 65 k Ω
Common mode range: ±30 V
Resolution: 13 bits + sign
2 AI 0-
3 AI 1+
4 AI 1-
5 AO 0+ Analog outputs (AO)
Voltage range: -10 … +10 V
Load current: max. -3 … +3 mA
Resolution: 11 bit + signed
Continuous short-circuit proof
6 AO 0-
7 AO 1+
8 AO 1-
Max. connectable cross-section: 0.5 mm²
1)
AI: analog input, AO: Analog output
Note
Permissible voltage values
In order to avoid incorrect results of the analog-digital conversion, the analog differential
voltage signals can have a maximum offset voltage of +/-30 V with respect to ground
potential.
Note
Open input
An open input is interpreted as approximately "0 V".
The power supply of the analog inputs/outputs is drawn via the option slot of the Control Unit
and not via X424.
The shield is connected to the Control Unit.