Siemens SINAMICS G220 - Page 478

- 6821 -
1
Dynamic Drive Control (DDC, p0504 = 2) Current control, overview
© Siemens AG
2 3 4 5 6 7 8
V6.02.00
[6832]
–
K
P
+
+
+
++
[6833]
+
+
–
+
r0079
Torque setpoint [Nm]
[6820.8]
Flux setpoint
50.0 ... 200.0 [%]
p1570 [D] (100.0)
Starting torque static (without
encoder) [%]
p1610 [D] (50.0)
Maximum output voltage [Vrms]
r0071
Acceleration starting torque
(encoderless) [%]
p1611 [D] (30.0)
U_set
–
+
+
+
+
–
[6834] Flux setpoint (p0300 = 6xxx) [6835] Id setpoint (p0300 = 6xxx) [6836] Id setpoint (p0300 = 2xxx) [6837] Field weakening characteristic, flux setpoint (p0300 = 1xxx)
[6838] Field weakening controller, flux controller, Id setpoint (p0300 = 1xxx)
[6839] Field weakening controller (p0300 = 2xxx)
–
+
Current controller
P gain
p1715 [D] (0.000)
Current controller integral-action time [ms]
p1717 [D] (2.00)
p1720[D] p1722[D]
p1715[D]
p1717[D]
Iq controller Id controller
r0072
Output voltage [Vrms]
r0078[0..1]
Current actual value
torque-generating [Arms]
r0076[0..1]
Current actual value field-
generating [Arms]
Transformation
U_set U_angle
r0074 Modulation depth [%]
r0070
Actual DC link voltage [V]
r0077 Current setpoint torque-generating [Arms] r0075 Current setpoint field-generating [Arms]
Iq and Id controller
Field
weakening
controller
Field
weakening
characteristic
Current
calculation
Current setpoint filter
M Iq
M Iq
r0066
Output frequency [Hz]
Slip frequency [Hz]
r0065
Motor model
Current model
[6820.3]
[6820.1]
Speed pre-control
Speed model
For induction motor (p0300 = 1xxx).
I_phase actual
value
V_phase actual
value
[6841]
Interface to the power unit (Permanent-magnet synchronous motor, p0300 = 2xxx)
[6842] [6843]
Interface to the power unit (Reluctance synchronous motor, p0300 = 6xxx) Interface to the power unit (induction motor, p0300 = 1xxx)
For reluctance synchronous motor (p0300 = 6xxx).
Speed adaptation
<1>
The input is not active for: - operation with encoder - synchronous reluctance motor with test pulse technique - induction motor closed-loop control down to f = 0 (passive loads)
<1>
Figure14-87 6821 - Current control, overview
Functions
14.10Closed-loop drive control
SINAMICS G220 converter
476 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB