Descriptions of functions
10.3 Communication according to PROFIdrive
SINAMICS DCM DC Converter
418
Operating Instructions, 12/2018, A5E34763375A
NSET_B (speed setpoint B (32-bit))
●
Speed setpoint with a 32-bit resolution with sign bit.
●
Bit 31 determines the sign of the setpoint:
–
Bit = 0
→
Positive setpoint
–
Bit = 1
→
Negative setpoint
●
The speed is normalized via p2000.
NSET_B = 4000 0000 hex or 1 073 741 824 dec
≐
speed in p2000
Figure 10-3 Normalization of speed
Note
Operation of motors in the field-weakening range
If the motors are to be operated in the field-weakening range > 2:1, the value of parameter
p2000 must be set
≤
1/2 x maximum speed of the drive object.
Gn_STW (encoder n control word)
This process data belongs to the encoder interface.
A_DIGITAL
CU_STW1
This process data is part of the central process data.
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