Siemens SINAMICS S120 Manual page 347
Cabinet modules liquid cooled
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- Function manual (1094 pages) ,
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X521: 2 analog inputs (differential inputs)
Table 9- 10
Connector
Max. connectable cross-section: 1.5 mm²
AI: analog input; P10/N10: auxiliary voltage, M: Ground reference
1)
NOTICE
Damage or malfunctions through impermissible voltage values
If a current exceeding ±35 mA flows through the analog current input, then the component
could be destroyed.
The common mode range must not be violated in order to avoid incorrect analog-digital
conversion results.
• The input voltage may only be in the range between -30 V and +30 V (destruction limit).
• The common mode voltage may only be in the range between -10 V and +10 V (error
• The back EMF at the auxiliary voltage connections may only be in the range between -
Note
The power supply for the analog inputs can be taken internally or from an external power
supply unit.
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
Terminal block X521
Terminal
1
2
3
4
5
6
7
8
limit).
15 V and +15 V.
Designation
1)
AI 0+
The analog inputs can be toggled between current
and voltage input using switches S5.0 and S5.1.
AI 0-
As voltage input:
AI 1+
-10 ... +10 V; R
AI 1-
Resolution: 11 bits + sign
As current input:
-20 ... +20 mA; R
Resolution: 10 bits + sign
P10
Auxiliary voltage:
P10 = 10 V
M
N10 = -10 V
N10
Continuously short-circuit proof
M
9.7 G60, Terminal Module TM31
Technical data
> 100 kΩ
i
= 250 kΩ
i
Options
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