6
6.1 Operating mode, speed/torque setpoint (P0700 = 1)
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Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Reader’s note
For ”SIMODRIVE 611 universal”, additional monitoring functions can
be parameterized, and processed via output signals (terminals,
PROFIBUS) (refer to Chapter 6.4.6).
6.1.8 Limits
The speed setpoint is limited to the maximum value which is set.
How is the speed setpoint limiting calculated?
Motor type Interdependencies
SRM, SLM: P1405 P1401:8
ARM: Minimum
(P1405 P1401:8, 1.02 P1147, 1.02 P1146)
Note
The maximum useful motor speed, set via P1401:8, is taken into
account when calculating the speed setpoint, i.e. P1401:8 acts as
speed limiting.
This is valid, independent of whether the setpoint is entered
via a terminal or PROFIBUS–DP.
If the speed actual value exceeds the selected limit value by more than
2%, then the torque, when motoring, is set to 0.
Thus, further acceleration is not possible.
If the speed actual value drops below the limit value, the torque limiting
is withdrawn again.
How is the speed limiting calculated?
Motor type Interdependencies
SRM: Minimum (P1147, 1.2 P1400)
ARM, SLM, PE spindle: Minimum (P1147, P1146)
Other
monitoring
functions
Limiting the speed
setpoint
Speed
limiting
6 Description of the Functions
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