Descriptions of functions
10.3 Communication according to PROFIdrive
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
417
STW2_BM (control word 2, metal industry)
See function diagram [2426].
Table 10- 11 Description of STW1_BM (control word 1, metal industry)
Interconnection parameter
Command data set selection CDS bit 0
1 Reserved -
Drive data set selection, CDS bit 0
1)
Drive data set selection, CDS bit 1
1)
1 = Bypass ramp-function generator
1 = Speed controller integration value set
1 = Enable speed controller
1)
1)
11 0 = Speed-controlled mode
1 = Torque-controlled mode
p50687[0] = r2093.11
1)
1)
1)
Controller sign-of-life toggle bit
1)
Interconnection is not disabled.
NSET_A (speed setpoint A (16-bit))
● Speed setpoint with a 16-bit resolution with sign bit.
● Bit 15 determines the sign of the setpoint:
– Bit = 0 → Positive setpoint
– Bit = 1 → Negative setpoint
● The speed is normalized via p2000.
NSET_A = 4000 hex or 16384 dec ≐ speed in p2000