Siemens SINAMICS DCM User Manual

Additional system components
7.5 Terminal Module TM31
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
243
7.5.3.5
X521 analog inputs
Table 7- 36 X521 terminal strip
Connector
Terminal
Designation
1)
Technical specifications
1
AI 0+
The analog inputs can be toggled between
current and voltage input using switches
S5.0 and S5.1
As voltage input:
-10 V to +10 V; R
i
= 100 kΩ
Resolution: 11 bits + sign
As current input:
R
i
= 250 Ω
Resolution: 10 bits + sign
2
AI 0-
3
AI 1+
4 AI 1-
5
P10
Auxiliary voltage
:
P10 = 10 V
N10 = -10 V
Current-carrying capacity: max. 3 mA
Sustained short-circuit-proof
6
M
7
N10
8 M
1)
AI: Analog inputs; P10/N10: Auxiliary voltage; M: Ground reference
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 limit).
• The back EMF at the auxiliary voltage connections may only be in the range between
-15 V and +15 V.
Note
The power supply for the analog inputs can be taken internally or from an external power
supply unit

Siemens SINAMICS DCM Specifications

General

Brand	Siemens
Model	SINAMICS DCM
Category	Media Converter
Language	English