Speed Limit - Siemens SINAMICS V90 Operating Instructions Manual

7.3.8

Speed limit

Four sources in total are available for the speed limit. You can select one of them via a
combination of digital input signals SLIM1 and SLIM2:
Note
Control mode
The above four sources are valid in all control modes. You can switch among them when the
servo drive is running.
Note
Fault F7901 occurs when the actual speed exceeds the positive speed limit + hysteresis
speed (p2162) or the negative speed limit - hysteresis speed (p2162). Go to "List of faults
and alarms (Page 329)" for information about the acknowledgment of this fault.
Note
If the drive is working with external speed limit, the system continues to work automatically
after you repower on the 24 VDC power supply which is shut off unexpected for the drive. In
this case, do not touch the equipment.
Refer to "DIs (Page 90)" for more information about the digital input signals SLIM1 and
SLIM2.
Overall speed limit
Besides the above four channels, an overall speed limit is also available for all control modes.
The overall speed limit can be configured by setting the following parameters:
Parameter Value range
p1083 0 to 210000
p1086 -210000 to 0
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E36037884-002
Digital signal
SLIM2 SLIM1
0 0
0 1
1 0
1 1
Default Unit
210000 rpm
-210000 rpm
7.3 Pulse train input position control (PTI)
Internal speed limit 1
External speed limit (analog input 1)
Internal speed limit 2
Internal speed limit 3
Overall speed limit (positive)
Overall speed limit (negative)
Control functions
Speed limit
Description
175