Siemens SINAMICS G120X, Руководство по эксплуатации

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Dependency: The starting current (voltage boost) is limited by the current limit p0640.
Only for p1302.4 = 0 (no field orientation):
The accuracy of the starting current depends on the setting of the stator and feeder cable resistance (p0350, p0352).
For vector control, the starting current is realized using p1610.
See also: p1300, p1311, p1312, r1315
NOTICE
The starting current (voltage boost) increases the motor temperature (particularly at zero speed).
Note
The starting current as a result of the voltage boost is only effective for U/f control (p1300).
The boost values are combined with one another if the permanent voltage boost (p1310) is used in conjunction with
other boost parameters (acceleration boost (p1311), voltage boost for starting (p1312)).
However, these parameters are assigned the following priorities: p1310 > p1311, p1312
For field orientation (p1302 bit 4 = 1, not PM230, PM250, PM260), then p1310 together with p1311 and p1302.5 are
mainly responsible for the quality of the drive response.
p1311[0...n] Starting current (voltage boost) when accelerating / I_start accel
Access level: 2 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6300, 6301,
6851
Min:
0.0 [%] Max:
250.0 [%] Factory setting:
0.0 [%]
Description: p1311 only results in a voltage boost when accelerating and generates a supplementary torque to accelerate the load.
The voltage boost becomes effective for a positive setpoint increase and disappears as soon as the setpoint has been
reached. The build-up and withdrawal of the voltage boost are smoothed.
The magnitude of the boost in Volt at a frequency of zero is defined as follows (not for field orientation):
Voltage boost [V] = 1.732 * p0305 (rated motor current [A]) x r0395 (stator/primary section resistance [ohm]) x p1311
(voltage boost when accelerating [%]) / 100 %
Dependency: The current limit p0640 limits the boost.
For field orientation (p1302 bit 4 = 1, not PM230, PM250, PM260), p1311 is pre-assigned by the automatic calculation.
For vector control, the starting current is realized using p1611.
See also: p1300, p1310, p1312, r1315
NOTICE
The voltage boost results in a higher motor temperature increase.
Note
The voltage boost when accelerating can improve the response to small, positive setpoint changes.
Assigning priorities for the voltage boosts: refer to p1310
For field orientation (p1302 bit 4 = 1, not PM230, PM250, PM260), then p1311 together with p1310 and p1302.5 are
mainly responsible for the quality of the drive response.
p1312[0...n] Starting current (voltage boost) when starting / I_start start
Access level: 2 Calculated: - Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6300, 6301,
6851
Min:
0.0 [%] Max:
250.0 [%] Factory setting:
0.0 [%]
Description: Setting for an additional voltage boost when powering-up, however, only for the first acceleration phase.
The voltage boost becomes effective for a positive setpoint increase and disappears as soon as the setpoint has been
reached. The build-up and withdrawal of the voltage boost are smoothed.
Parameters
7.2 Parameter list
SINAMICS G120X converter
670
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC