Siemens sinamics dcp - Fig. 3-36 6825 - Residual current controller

3 Function diagrams 3.9 Closed-loop control
SINAMICS DCP
356 List Manual (LH21), 05/2016
Fig. 3-36 6825 – Residual current controller
fp_6825_89.vsd
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- 6825 -
SINAMICS DCP
25.04.2016 v 1.2
DO: DCP_CTRL
- Differential current controller
Function diagram
y
x
I_diff_ctrl limit
p55262 (10.000 %)
I_diff_ctrl t_int
p55260 (100.000 s)
Pulse frequency
r55252[0]
I_diff_ctrl_outp [%]
+
+
+
+
+
-
+
+
-
r55521
ActVal I_re PU1avg [%]
r55522
ActVal I_re PU2avg [%]
[6820.7]
[6850.2]
[6850.2]
y
x
y
x
[2585.7] r00899.11
Pulses enab
1
0
1
0
+
r55070
I_set after RFG [%]
[6805.4]
r55250
PU1 ctrl_angle [%]
r55251[0]
PU 2 3 ctrl_angle [%]
Cl-loop ctrl_mode
p55270 (0)
>1
_
PWM limit reached
[6825.8]
Control factor
r55125.14
PWM lim rch
y
x
+
+
+
-
y
x
1
0
r55251[1]
PU 2 3 ctrl_angle [%]
r55252[1]
I_diff_ctrl_outp [%]
+
+
+
+
+
+
+
+
+
-
r55521
ActVal I_re PU1avg [%]
r55523
ActVal I_re PU3avg [%]
[6850.2]
[6850.2]
r55522
ActVal I_re PU2avg [%]
[6850.2]
+
Mod ctrAng lim pos
p55305 (200.00)
p55306 (-200.00)
Mod ctrAng lim neg