Siemens SINAMICS V90 Operating Instructions Manual page 309

Par. No. Name
p29132 Gain switching condition:
Position setpoint frequen-
cy
Description: Triggers pulse input frequency (PTI) threshold or internal position speed (IPos) threshold for gain
switching. If the gain switching function is enabled and this condition is selected:
1. PTI
– Switch from the first group of control parameters to the second group when the pulse train input pulse
is higher than the threshold.
– Switch from the second group of control parameters to the first group when the pulse train input is low-
er than the threshold.
2. IPos
– Switch from the first group of control parameters to the second group when the speed of fixed position
setpoint is larger than the threshold.
– Switch from the second group of control parameters to the first group when the IPos is smaller than the
threshold.
p29133 Gain switching condition:
Actual speed
Description: Triggers speed threshold for gain switching. If the gain switching function is enabled and this
condition is selected:
Switch from the first group of control parameters to the second group when the actual motor speed is
•
larger than the threshold.
Switch from the second group of control parameters to the first group when the actual motor speed is
•
smaller than the threshold.
p29139 Gain switching time con-
stant
Description: Time constant for gain switching. Set this parameter to avoid frequent gain switches that reduces
system reliability.
p29140 PI to P: Mode selection
Description: Selects a condition for the switch from PI control to P control under the speed loop.
0: Disabled
•
1: Torque is higher than a parameterizable setting value.
•
2: Using the digital input signal (G-CHANGE).
•
3: Speed is higher than a parameterizable setting value.
•
4: Acceleration is higher than a parameterizable setting value.
•
5: Pulse deviation is higher than a parameterizable setting value.
•
Note: Only when the auto tuning function (p29021=0) and gain switching function are both disabled can the
PI/P switching function be used.
p29141 PI to P switching condi-
tion: Torque
Description: Triggers torque threshold for PI/P switching. If the PI/P switching function is enabled and this
condition is selected:
Switch from the PI control to the P control when the actual torque is larger than the threshold.
•
Switch from the P control to the PI control when the actual torque is smaller than the threshold.
•
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E36037884-002
Min Max
0 214700006
4
0 214700006
4
8 1000
0 5
0 300
Factory Unit Data
Setting type
100 100 Float
0
LU/
min
100 rpm Float
20 ms Float
0 - U16
200 % Float
Parameters
10.2 Parameter list
Effective Can be
changed
IM T
IM T
IM T
IM T
IM T
309