Analog Inputs - Siemens SINAMICS DCM Operating Instructions Manual

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
•
•
•
•
AI 2
•
•
•
•
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
operated 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,
•
AI 6
•
•
•
An external actual armature current value can also be connected to these inputs (see FP6850).
Power interface
•
tachometer input
•
XT1.103/104
•
•
This input is designed for connecting an analog tachometer, but can also be used in other ways.
Power interface
•
XT5, XT6
•
Power interface
•
X7, X8
•
•
372
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.
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.
Differential inputs
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.
Input referred to ground
High-voltage input -270 V .. +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.
Input referred to ground
Connection, NTC 6.8 kΩ, NTC 10 kΩ
Input referred to ground
Current transformer connection
Internal 10 Ω load resistors
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A