User Manual

List of Parameters
Parameters
1-309
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 06/2011
Description: Sets the signal source for the offset of the output limiting of the technology controller.
Note: In mode p2251 = 1, p2299 must be connected to the output of ramp-function generator r1150 so that the technol-
ogy controller stops when the speed limits are reached (see also p2297, p2298).
Description: Sets the start value for the output of the technology controller.
When the technology controller is enabled (refer to p2200 and r0056.3) then its output signal (r2294) starts to run
from this starting value.
Dependency: The starting value is only effective in the mode "technology controller as main speed setpoint" (p2251 = 0).
Note: If the technology controller operates on the speed/setpoint channel (p2251 = 0), then the starting value is inter-
preted as the starting speed and when operation is enabled, is connected to the output of the technology controller
(r2294).
If fault F07426 "technology controller actual value limited" occurs while ramping up to the starting value and if the
associated reaction has been set to "NONE" (see p2100, p2101), the starting value is kept as the speed setpoint
instead of a switch to closed-loop control operation.
Description: Setting to invert the fault signal 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).
p2299[0...n] CI: Technology controller limit offset / Tech_ctrl lim offs
Access level: 3 Calculated: - Data type: U32 / FloatingPoint32
Can be changed: U, T Scaling: PERCENT Data set: CDS, p0170
Units group: - Unit selection: -
Min Max Factory setting
- - 0
p2302 Technology controller output signal starting value / Tec_ctr start val
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: -
Units group: - Unit selection: -
Min Max Factory setting
0.00 [%] 200.00 [%] 0.00 [%]
p2306 Technology controller fault signal inversion / Tec_ctrl fault inv
Access level: 3 Calculated: - Data type: Integer16
Can be changed: T Scaling: - Data set: -
Units group: - Unit selection: -
Min Max Factory setting
0 1 0