Siemens SINAMICS G120 Operating Instructions Manual page 270

Advanced commissioning
6.17 PID technology controller
Further information about the following PID controller topics is available in the Internet:
● Setpoint specification: Analog value or fixed setpoint
● Setpoint channel: Scaling, ramp-function generator and filter
● Actual value channel: Filter, limiting and signal processing
● PID controller Principle of operation of the D component, inhibiting the I component and
the control sense
● Enable, limiting the controller output and fault response
FAQ (http://support.automation.siemens.com/WW/view/en/92556266)
Setting the technology controller
Parameter
p2200
r2294
p2253
p2264
p2257, p2258
p2274
p2280
p2285
Advanced settings
Parameter
Limiting the output of the technology controller
In the factory setting, the output of the technology controller is limited to ± maximum speed. You must
change this limit, depending on your particular application.
Example: The output of the technology controller supplies the speed setpoint for a pump. The pump
should only run in the positive direction.
p2297
p2298
p2291
p2292
270
Remark
BI: Technology controller enable (factory setting: 0)
1 signal: Technology controller is enabled.
CO: Technology controller output signal
To interconnect the main speed setpoint with the technology controller output, set
p1070 = 2294.
CI: Technology controller setpoint 1 (factory setting: 0)
Setpoint for the technology controller.
Example:
p2253 = 2224: The inverter interconnects the fixed setpoint p2201 with the setpoint
of the technology controller.
p2220 = 1: The fixed setpoint p2201 is selected.
CI: Technology controller actual value (factory setting: 0)
Technology controller actual value.
Technology controller ramp-up time and ramp-down time (factory setting: 1 s)
Technology controller differentiation time constant T
The differentiation improves the rise time for very slow controlled variables, e.g. a
temperature control.
Technology controller proportional gain K
Technology controller integration time (integral time) T
Remark
CI: Technology controller maximum limiting signal source (factory setting: 1084)
CI: Technology controller minimum limiting signal source (factory setting: 2292)
CO: Technology maximum limiting (factory setting: 100 %)
CO: Technology minimum limiting (factory setting: 0 %)
Operating Instructions, 01/2017, FW V4.7 SP6, A5E34259001B AD
(factory setting: 0.0 s)
d
(factory setting: 1,0)
P
(factory setting: 30 s)
d
Converter with the CU240B-2 and CU240E-2 Control Units