Descriptions of functions
10.3 Communication according to PROFIdrive
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
429
Bit Name
Signal status, description
13 Transmit absolute value
cyclically
1
Acknowledgement for Gn_STW.13 (request absolute value cyclically)
Note:
Cyclic transmission of the absolute value can be interrupted by a function
with higher priority.
•
See Gn_XIST2
0
No acknowledgement
14 Parking encoder
1
Parking encoder active (i.e. parking encoder switched off)
0
No active parking encoder
15 Encoder fault
1
Error from encoder or actual-value sensing is active.
Note:
The error code is stored in Gn_XIST2.
0
No error is active.
Encoder 1 actual position value 1 (G1_XIST1)
●
Resolution: Encoder lines
∙
2n
n: Fine resolution, no. of bits for internal multiplication
The fine resolution is specified via p0418.
●
Used to transfer the cyclic actual position value to the controller.
●
The transferred value is a relative, free-running actual value.
●
Any overflows must be evaluated by the master controller.
Figure 10-6 Subdivision and settings for Gx_XIST1
●
Encoder lines of incremental encoder
–
For encoders with sin/cos 1Vpp:
Encoder lines = No. of sinusoidal signal periods
●
After power-up: Gx_XIST1 = 0
●
An overflow in Gx_XIST1 must be viewed by the master controller.
●
There is no modulo interpretation of Gx_XIST1 in the drive.
