Operation
7.11 Closed-loop control
SINAMICS DCP
328 Operating Instructions, 09/2019, A5E34382853K
Figure 7-59 Controller structure
7.11.2 Setpoint specification for current control
See function diagrams 6805 and 6806 in the SINAMICS DCP List Manual.
In current-controlled operation, the SINAMICS DCP receives the current or power setpoint
via connector input p55050 (current setpoint signal source).
Depending on the setting in p55060 (current setpoint meaning), the device interprets this
setpoint as follows:
● Current setpoint for the energy storage reactor (p55060 = 10)
● Current setpoint for the current on side 1 (p55060 = 11)
● Current setpoint for the current on side 2 (p55060 = 12)
● Power setpoint (p55060 = 20)
The setpoint should be entered as signed value referred to the reference current (r50072) or
the rated power (r50071 × r50072 or r55602):
● Positive setpoint means current flow from side 1 to side 2.
● Negative setpoint means current flow from side 2 to side 1.
The setpoint is used to limit the steepness (gradient) via a settable ramp (p55055, factory
setting: 0 ... 100% in 50 ms).
Setpoints whose values are below a parameterizable threshold (p55056) are ignored and
evaluated as zero.
To Next Page
Loading...
