Siemens SINAMICS G120 List Manual page 376

2 Parameters
2.2 List of parameters
p2270 Technology controller actual value function / Tec_ctr ActVal fct
CU250S_V (Tech_ctrl) Access level: 3
CU250S_V_CAN
Can be changed: U, T
(Tech_ctrl)
Unit group: -
CU250S_V_DP
Min
(Tech_ctrl)
0
CU250S_V_PN
(Tech_ctrl)
Description: Setting to use an arithmetic function for the actual value signal of the technology controller.
Value: 0:
1:
2:
3:
Dependency: Refer to: p2264, p2265, p2267, p2268, p2269, p2271
p2271 Technology controller actual value inversion (sensor type) / Tech_ctrl act inv
CU250S_V (Tech_ctrl) Access level: 3
CU250S_V_CAN
Can be changed: T
(Tech_ctrl)
Unit group: -
CU250S_V_DP
Min
(Tech_ctrl)
0
CU250S_V_PN
(Tech_ctrl)
Description: Setting to invert the actual value signal of the technology controller.
The inversion depends on the sensor type for the actual value signal.
Value: 0:
1:
Caution: If the actual value inversion is incorrectly selected, then the closed-loop control with the technology controller can
become unstable and can oscillate!
Note: The correct setting can be determined as follows:
- inhibit the technology controller (p2200 = 0).
- increase the motor speed and in so doing, measure the actual value signal of the technology controller.
--> If the actual value increases as the motor speed increases, then p2271 should be set to 0 (no inversion).
--> If the actual value decreases as the motor speed increases, then p2271 should be set to 1 (the actual value signal
is inverted).
r2272 CO: Technology controller actual value scaled / Tech_ctrl act scal
CU250S_V (Tech_ctrl) Access level: 2
CU250S_V_CAN
Can be changed: -
(Tech_ctrl)
Unit group: 9_1
CU250S_V_DP
Min
(Tech_ctrl)
- [%]
CU250S_V_PN
(Tech_ctrl)
Description: Display and connector output for the scaled actual value signal of the technology controller.
Dependency: Refer to: p2264, p2265, r2266, p2267, p2268, p2269, p2270, p2271
376
Output (y) = input (x)
Root function (root from x)
Square function (x * x)
Cube function (x * x * x)
No inversion
Inversion actual value signal
Calculated: -
Scaling: -
Unit selection: -
Max
3
Calculated: -
Scaling: -
Unit selection: -
Max
1
Calculated: -
Scaling: PERCENT
Unit selection: p0595
Max
- [%]
Data type: Integer16
Dyn. index: -
Func. diagram: 7958
Factory setting
0
Data type: Integer16
Dyn. index: -
Func. diagram: 7958
Factory setting
0
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 7958
Factory setting
- [%]
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890