Description Of Control Words And Setpoints - Siemens SINAMICS DCM Operating Instructions Manual

Descriptions of functions
10.2 PROFIBUS
10.2.6

Description of control words and setpoints

Overview
Table 10- 6 Overview of control words and setpoints
Abbreviation Description
STW1 Control word 1
NSET_A Speed setpoint A (16-bit)
PCS7_x PCS7-specific setpoints
Control word 1 (STW1)
Table 10- 7 Control word 1 (STW1)
Bit Meaning
0 0 = OFF1 (OFF1)
0 → 1 = ON
1 0 = Coast down (OFF2)
1 = Do not coast down
Note: Control signal OFF2 is generated by ANDing BI: p0844 and BI: p0845.
2 0 = Quick stop (OFF3)
1 = No quick stop
Note: Control signal OFF3 is generated by ANDing BI: p0848 and BI: p0849.
3 0 = Inhibit operation
1 = Enable operation
4 0 = Inhibit ramp-function
generator
1 = Enable ramp-function
generator
5 0 = Stop ramp-function
generator
1 = Start ramp-function
generator
6 1 = Enable speed setpoint
0 = Inhibit speed setpoint
344
Parameter
See table: "Control word 1"
p1070
Explanation
0: Deceleration on the down ramp, then pulse
inhibit, line contactor (if present) is opened
Pulse enable possible
0: Pulse inhibit, line contactor (if present) is
opened
Enable possible
0: Deceleration on the quick stop ramp, then
pulse inhibit, line contactor (if present) is opened.
Enable possible
0: Pulse inhibit. The motor coasts down. The
"Ready for Operation" state remains set.
1: Pulse enable, ramp-up with active setpoint
0: The ramp-function generator output is set to
setpoint "0".
0: The current setpoint is frozen at the ramp-
function generator output.
1: The speed setpoint at the input of the ramp-
function generator is enabled.
0: The speed setpoint at the input of the ramp-
function generator is set to zero. The drive
brakes in accordance with the set ramp-down
time.
Operating
condition
1
1
1
1
1
1
1
Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
Function diagram
FP2442
FP3113
BICO
BI: p0840
BI: p0844
BI: p0845
BI: p0848
BI: p0852
BI: p1140
BI: p1141
BI: p1142
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