Siemens SINAMICS DCM Manual page 377

Descriptions of functions
10.1 Inputs/Outputs
10.1.3 Analog inputs
Properties
Table 10- 2 Properties of the analog inputs
Inputs Properties
AI 0, AI 1
Differential inputs
•
Voltage inputs -10 to +10 V or
•
Current inputs -20 to +20 mA or 4 to 20 mA
Hardware input filter: T = 1 ms
•
Integrating measuring procedure. Averaging time = 1 ms. The average value determined during
•
this time is provided in BICO format.
AI 2
Differential input
•
Voltage input -10 to +10 V
•
Hardware input filter: T = 1 ms
•
Integrating measuring procedure. Averaging time = 1 ms. The average value determined during
•
this time is provided in BICO format.
An external armature current actual value can also be connected to this input (see FP6902).
The 3 inputs AI 0, AI 1 and AI 2 of a CUD on the left and the 3 inputs AI 0, AI 1 and AI 2 of a CUD on the right can be op-
erated so that they are averaged during the same measuring interval. The 6 mean values are provided on 6 BICOs (see
FP2083).
AI 3, AI 4, AI 5,
Differential inputs
•
AI 6
Voltage inputs -10 to +10 V
•
Hardware input filter: T = 100 µs
•
Sampling measuring procedure. Sampling time = 250 µs. The mean value taken from 4 sampling
•
values is provided in BICO format.
An external actual armature current value can also be connected to these inputs (see FP6850).
Tachometer input
Input referred to ground
•
XT1.103/104
High-voltage input -270 to +270 V
•
Hardware input filter: T = 1 ms
•
Integrating measuring procedure. Averaging time = 1 ms. The average value determined during
•
this time is provided in BICO format.
This input is designed for connecting an analog tachometer, but can also be used in other ways.
Function diagrams
2075
2080
2085
2090
378
Analog inputs, AI 0 and XT1.103/104
Analog inputs, AI 1 and AI 2
Analog inputs, AI 3 and AI 4
Analog inputs, AI 5 and AI 6
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SINAMICS DCM DC Converter
Operating Instructions, 02.2015, A5E34763375/RS-AA/001