Siemens SINAMICS G120XA - CI: Free Tec_Ctrl 1 Actual Value Signal Source; Ftec1 Act V S_S; Free Tec_Ctrl 1 Actual Value Lower Limit; Ftec1 Act V lo Lim; Free Tec_Ctrl 1 Actual Value Smoothing Time Constant; Ftec1 Act V T; Free Tec_Ctrl 1 Actual Value Upper Limit; Ftec1 Act V up Lim

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 free technology controller (p11200 = 0).
- increase the motor speed and in so doing, measure the actual value signal (of the free technology controller).
- if the actual value increases with increasing motor speed, then deactivate inversion.
- if the actual value decreases with increasing motor speed, then activate inversion.
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).
p11164 CI: Free tec_ctrl 1 actual value signal source / Ftec1 act v s_s
Access level: 2 Calculated: - Data type: Unsigned32 /
FloatingPoint32
Can be changed: T, U Scaling: PERCENT Dynamic index: -
Unit group: - Unit selection: - Function diagram: 7030
Min:
-
Max:
-
Factory setting:
0
Description: Sets the signal source for the actual value of the free technology controller 1.
p11165 Free tec_ctrl 1 actual value smoothing time constant / Ftec1 act v T
Access level: 2 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: -
Unit group: - Unit selection: - Function diagram: 7030
Min:
0.00 [s]
Max:
60.00 [s]
Factory setting:
0.00 [s]
Description: Sets the smoothing time constant (PT1) for the actual value of the free technology controller 1.
p11167 Free tec_ctrl 1 actual value upper limit / Ftec1 act v up lim
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: PERCENT Dynamic index: -
Unit group: 9_3 Unit selection: p11126 Function diagram: 7030
Min:
-200.00 [%]
Max:
200.00 [%]
Factory setting:
100.00 [%]
Description: Sets the upper limit for the actual value signal of the free technology controller 1.
Dependency: See also: p11164
p11168 Free tec_ctrl 1 actual value lower limit / Ftec1 act v lo lim
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: PERCENT Dynamic index: -
Unit group: 9_3 Unit selection: p11126 Function diagram: 7030
Min:
-200.00 [%]
Max:
200.00 [%]
Factory setting:
-100.00 [%]
Description: Sets the lower limit for the actual value signal of the free technology controller 1.
Dependency: See also: p11164
Parameters
7.3 Parameters
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB 695