SINAMICS G130/G150
List Manual (LH2), 04/2014, A5E03263479A
417
2 Parameters
2.2 List of parameters
Description: Sets the configuration for the motor model.
Bit 0 = 1: Forces open-loop speed-controlled starting (ASM).
Bit 1 = 1: Forces the system to pass through frequency zero, open-loop-controlled (ASM).
Bit 2 = 1: Drive remains in full closed-loop control mode, even at zero frequency (ASM).
Bit 3 = 1: Motor model evaluates the saturation characteristic (ASM).
Bit 4 = 1: Time-controlled change between current and observer models (ASM).
Bit 5 = 1: HF signal injection to estimate the continuous rotor position (PESM).
Bit 6 = 1: If the motor is blocked, sensorless vector control remains speed-controlled (ASM).
For a stalled (blocked) synchronous motor (PEM), the encoderless vector control remains open-loop speed
controlled.
Bit 7 = 1: Use rugged switchover limits to switchover the model between open-loop and closed-loop controlled
operation (ASM).
Caution: Do not use bit 6 = 1 if the motor can be slowly reversed by the load at the torque limit. Long delay times due to
blocking (p2177 > p1758) can cause the motor to stall. In this case you should de-activate the function or use closed-
loop control throughout the speed range (note the information re bit 2 = 1).
Note: Bit 0 ... 3 only have influence for sensorless vector control, bit 4 only for vector control with encoder. Bit 2 is pre-
assigned depending on p0500.
Re bit 2 = 1:
The sensorless vector control is effective down to zero frequency. A change is not made into the open-loop speed
controlled mode.
This operating mode is possible for passive loads. These include applications where the load itself does not generate
any active torque and therefore only acts reactively to the drive torque of the induction motor.
If bit 2 = 1, then bit 3 is automatically set to 1. Manual de-selection is possible and may be sensible if the saturation
characteristic (p1960) was not measured for third-party motors. Generally, for standard SIEMENS motors, the
already pre-assigned (default value) saturation characteristic is adequate.
When the bit is set, the selection of bits 0 and 1 is ignored.
Re bit 2 = 0:
If the model feedback is deactivated (p1784 = 0), with bit 2 = 0, then bit 3 is also automatically set to 0.
Re bit 5 = 1:
The selection of HF signal injection is only relevant for permanent-magnet synchronous motors (PESM). Therefore,
activation of bit 5 is only possible outside of motor commissioning (p0010 = 0).
In order to achieve user-friendly configuration of the power unit components in the oversampling mode, when
activated for the first time, initially p1810.3 is set, and then an automatic system boot is initiated. This is only possible
if all of the axes connected to the Control Unit are switched off (refer to the setting conditions for p0009); otherwise, it
is not possible to set the bit.
When deactivating p1750.5, p1810.3 remains unchanged and the system does not boot again.
Therefore, to reverse configure the power unit components from the oversampling mode (after manually deselecting
p1750 bit 5) then initially p1810 bit 3 must be manually deleted and then a manual warm restart initiated.
p1750[0...n] Motor model configuration / MotMod config
VECTOR_G (n/M) Can be changed: U, T Calculated:
CALC_MOD_LIM_REF
Access level: 3
Data type: Unsigned8 Dyn. index: DDS, p0180 Func. diagram: -
P-Group: Closed-loop control Units group: - Unit selection: -
Not for motor type: REL, FEM Scaling: - Expert list: 1
Min Max Factory setting
- - 0000 0000 bin
Bit field: Bit Signal name 1 signal 0 signal FP
00 Controlled start Yes No -
01 Controlled through 0 Hz Yes No -
02 Closed-loop ctrl oper. down to zero freq. for
passive loads
Yes No -
03 Motor model Lh_pre = f(PsiEst) Yes No -
04 Model changeover Time controlled Freq. controlled -
05 Cl.-loop control mode PESM up to f=0Hz
with HF signal injection
Yes No -
06 Closed-loop/open-loop controlled (PEM) for
blocked motor
Yes No -
07 Use rugged changeover limits Yes No -
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