Siemens SINAMICS G220 - Page 540

- 6721 -
1
Vector control Id setpoint (Permanent-magnet synchronous motor, p0300 = 2xxx)
© Siemens AG
2 3 4 5 6 7 8
V6.02.00
1 0
M
Iq
Iq
M
[6710.8]
[6724.8]
Field weakening
precontrol characteristic
[6731.4]
1 = Controlled operation r1751.0
[6842.4]
Kt Rel
Lq Ld
Motor stator leakage inductance
0.00000 ... 1000.00000 [mH]
p0356 [M] (0.00000)
Motor stator inductance d axis
0.00000 ... 1000.00000 [mH]
p0357 [M] (0.00000)
Motor reluctance torque constant
-1000.00 ... 1000.00 [mH]
p0328 [M] (0.00)
Torque setting value speed controller
[6040.1]
P
K
M Id
+
0.9 · r0067
[6731.4]
Starting torque static (without encoder)
-200.0 ... 200.0 [%]
p1610 [D] (50.0)
Acceleration starting torque (encoderless)
0.0 ... 200.0 [%]
p1611 [D] (30.0)
Ramp-function
generator operating
Calculation
absolute current
+
r0094
Transformation angle [°]
r0077
Current setpoint torque- generating [Arms]
Closed-loop
operation
Open-loop
operation
← →
r1508
Torque setpoint before supplementary torque [Nm]
[6060.5]
<2>
<2>
[6731.5]
<1>
r0079
Torque setpoint [Nm]
Current setpoint smoothing time
4 ... 10000 [ms]
p1616 [D] (40)
Current injection ramp time
1 ... 10000 [ms]
p1601 [D] (20)
r1407.2
Optimum motor load angle
0.0 ... 135.0 [°]
p0327 [M] (90.0)
Actual motor magnetizing current/short-circuit current [Arms] r0331 [M]
-1
+
[6640.1] [6714.1]
r1593[0..1]
Field weakening controller /
flux controller output [Arms]
[6724.8]
Open-loop
operation
Switchover
<2> <1>
Effective injection ramp time: p1601: When switching over from open-loop controlled to closed-loop controlled operation p1616: When switching over from closed-loop controlled to open-loop controlled operation Only when closed-loop torque control is active (r1407.2 = 1):
The setting value for the field-generating current is formed by subtracting the effective torque current defined by r1508 from the calculated absolute current (p1610, p1611).
The "Torque setting value speed controller" is no longer applicable.
<2> Setting value field- generating current
+
MTPA characteristic field-
generating current setpoint
[6640.5] [6710.1] [6799.5]
Field-generating current setpoint total [Arms]
r1624
Motor model kT adaptation corrective value [Nm/A] r1797 [D]
Figure14-139 6721 - Id setpoint (permanent-magnet synchronous motor)
Functions
14.10Closed-loop drive control
SINAMICS G220 converter
538 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB