SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890
381
2 Parameters
2.2 List of parameters
Description:
Setting to invert the system deviation of the technology controller.
The setting depends on the type of control loop.
Value:
0:
No inversion
1:
Inversion
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 with increasing motor speed, then the inversion should be switched out.
- if the actual value decreases with increasing motor speed, then the inversion should be set.
If value = 0:
The drive reduces the output speed when the actual value rises (e.g. for heating fans, intake pump, compressor).
If value = 1:
The drive increases the output speed when the actual value increases (e.g. for cooling fans, discharge pumps).
Description:
Sets the threshold value for the system deviation of the technology controller, which controls holding the controller
integral component in the range of the skip speeds of the ramp-function generator.
Recommendation:
To avoid speed setpoint steps in the range of the skip speeds, we recommend setting p2252 bit 4 = 1 (ramp-function
generator bypass deactivated).
Dependency:
The parameter has no effect for p2252 bit 5 = 1 (integrator hold deactivated).
Refer to: r2273
Note:
Only p2251 = 0:
If the output signal of the technology controller reaches a skip band in the speed setpoint channel, then the integral
component of the controller is held, if at the same time, the system deviation is lower than the threshold value set
here. By holding the integral component, it can be avoided that the controller oscillates in the range of the skip bands.
Description:
Displays the smoothed speed setpoint of the technology controller prior to switching to operation with fault response
(see p2345).
Dependency:
Refer to: p2345
Note:
Smoothing time = 10 s
p2306
Technology controller system deviation inversion / Tec_ctr SysDev inv
CU250S_V (Tech_ctrl)
CU250S_V_CAN
(Tech_ctrl)
CU250S_V_DP
(Tech_ctrl)
CU250S_V_PN
(Tech_ctrl)
Access level:
3
Calculated:
-
Data type:
Integer16
Can be changed:
T
Scaling:
-
Dyn. index:
-
Unit group:
-
Unit selection:
-
Func. diagram:
7958
Min Max
Factory
setting
0 1 0
p2339
Techn. controller threshold value f. I comp. hold for skip speed / Tec_ctrl thr_skip
CU250S_V (Tech_ctrl)
CU250S_V_CAN
(Tech_ctrl)
CU250S_V_DP
(Tech_ctrl)
CU250S_V_PN
(Tech_ctrl)
Access level:
3
Calculated:
-
Data type:
FloatingPoint32
Can be changed:
U, T
Scaling:
PERCENT
Dyn. index:
-
Unit group:
9_1
Unit selection:
p0595
Func. diagram:
-
Min Max
Factory
setting
0.00 [%]
200.00 [%]
2.00 [%]
r2344
CO: Technology controller last speed setpoint (smoothed) / Tec_ctrl n_setp_sm
CU250S_V (Tech_ctrl)
CU250S_V_CAN
(Tech_ctrl)
CU250S_V_DP
(Tech_ctrl)
CU250S_V_PN
(Tech_ctrl)
Access level:
3
Calculated:
-
Data type:
FloatingPoint32
Can be changed:
-
Scaling:
PERCENT
Dyn. index:
-
Unit group:
-
Unit selection:
-
Func. diagram:
7958
Min Max
Factory
setting
- [%]
- [%]
- [%]
Содержание SINAMICS G120
Страница 1: ...SINAMICS SINAMICS G120 CU250S 2 Control Units List Manual 09 2017 Edition www siemens com drives ...
Страница 2: ......
Страница 726: ...2 Parameters 2 6 Quick commissioning p0010 1 SINAMICS G120 CU250S 2 Control Units 726 List Manual 09 2017 A5E33842890 ...
Страница 990: ...3 Function diagrams 3 26 Data sets SINAMICS G120 CU250S 2 Control Units 990 List Manual 09 2017 A5E33842890 ...
Страница 1242: ...A Appendix A 2 List of abbreviations SINAMICS G120 CU250S 2 Control Units 1242 List Manual 09 2017 A5E33842890 ...
Страница 1255: ......