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5 Communications via PROFIBUS DP
5.6
Net data (PKW and PZD area)
Status word Pwirk
Status word Msoll
Normalization of
Msoll (P0882)
5-238
The actual drive active power is displayed using this status word.
The active power is calculated from the speed actual value and the ac-
tual torque setpoint. Contrary to the torque and power limits, in this
case, the current limiting is not taken into account.
Data transfer format:
Update rate at which this signal is provided:
S
Clock–cycle synchronous PROFIBUS–DP
––> n–set mode:
master
––> pos mode: Position controller clock cycle (P1009)
S
non–clock–cycle synchronous PROFIBUS–DP
––> n–set mode:
––> pos mode:
The drive torque is displayed using this status word.
The normalization of Msoll is defined (from SW 4.1) using P0882 (eva-
luation, torque setpoint PROFIBUS).
actual torque setpoint for
S
synchronous motors:
Torque setpoint [Nm] = P1118 @ P1113 @
S
Induction motors:
Torque setpoint [Nm] =
Note
The reference torque is displayed in P1725 (normalization, torque
setpoint).
The torque value is smoothed via P1252 (transition frequency, torque
setpoint smoothing).
Transfer format: 4000
Update rate at which this signal is provided:
S
Clock–cycle synchronous PROFIBUS–DP
––> generally:
S
non–clock–cycle synchronous PROFIBUS–DP
––> n–set mode:
––> pos mode:
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Pwirk
100 8 1 kW
Position controller clock cycle (T
Position controller clock cycle (P1009)
Interpolation clock cycle (P1010)
Msoll
60 @ P1130 @ 1000
@
2 π @P1400
= 16384 8 reference torque (in P1725)
Hex
DP clock cycle, sensed at instant in time T
Position controller clock cycle (P1009)
Interpolation clock cycle (P1010)
E Siemens AG 2005 All Rights Reserved
02.02
04.05
08.99
) of the
MAPC
P0882
@ Msoll
4000
hex
P0882
@ Msoll
4000
hex
i
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