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X521: 2 analog inputs (differential inputs)
Table 4- 22
Max. connectable cross-section:
- Standard version: #16 AWG (1.5 mm²)
- Version with option G65: #14 AWG (2.5 mm²)
AI: Analog input; P10/N10: Auxiliary voltage, M: Ground reference
1)
NOTICE
Damage or malfunction due to 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 outputs may only be in the range between -15 V
Note
The voltage supply for the analog inputs can be taken internally or from an external voltage
source.
Converter cabinet units
Operating Instructions, 11/2017, A5E36652151A
Terminal block X521
Terminal
1
2
3
4
5
6
7
8
limit).
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
Sustained short-circuit-proof
M
Electrical installation
4.8 Signal connections
Technical specifications
> 100 kΩ
i
= 250 kΩ
i
105
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