Siemens G130 List Manual page 356

2 Parameters
2.2 List of parameters
Notice: An excessively high value in p1245 can possibly negatively influence the normal operation of the drive.
Note: p1240 = 1, 3:
When the DC link voltage limit specified for the Motor Module is reached the following applies:
- the Vdc_max controller limits the regenerative energy in order that the DC link voltage is kept below the maximum
DC link voltage when braking.
- the ramp-down times are automatically increased.
p1240 = 2, 3:
When the switch-in threshold of the Vdc_min controller is reached (p1245), the following applies:
- the Vdc_min controller limits the energy taken from the DC link in order to keep the DC link voltage above the
minimum DC link voltage when accelerating.
- the motor is braked in order to use its kinetic energy to buffer the DC link.
p1240 = 4, 5, 6:
When the threshold in r1242 or r1246 is reached, the DC link voltage monitoring initiates a fault (F07403 or F07404)
with a response and therefore reduces additional negative effects on the DC link voltage.
If a braking resistor is connected to the DC link, then the Vdc_max control should be disabled (also see p1531).
r1242 Vdc_max controller switch-in level / Vdc_max on_level
VECTOR_G (n/M) Can be changed: -
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: REL
Min
- [V]
Description: Displays the switch-in level for the Vdc_max controller.
If p1254 = 0 (automatic sensing of the switch-in level = off), then the following applies:
AC/AC device: r1242 = 1.15 * sqrt(2) * p0210
DC/AC device: r1242 = 1.15 * p0210
If p1254 = 1 (automatic sensing of the switch-in level = on), then the following applies:
r1242 = Vdc_max - 50.0 V (Vdc_max: Overvoltage threshold of the power unit)
r1242 = Vdc_max - 25.0 V (for 230 V power units)
Notice: If the activation level of the Vdc_max controller is already exceeded in the deactivated state (pulse inhibit) by the DC
link voltage, then the controller can be automatically deactivated (see F07401), so that the drive is not accelerated
the next time that it is activated.
Note: The Vdc_max controller is not switched back off until the DC link voltage falls below the threshold 0.95 * r1242 and
the controller output is zero.
p1243[0...n] Vdc_max controller dynamic factor / Vdc_max dyn_factor
VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: REL
Min
1 [%]
Description: Sets the dynamic factor for the DC link voltage controller (Vdc_max controller).
100% means that p1250, p1251, and p1252 (gain, integral time, and rate time) are used corresponding to their basic
settings and based on a theoretical controller optimization.
If subsequent optimization is required, this can be carried out using the dynamic factor. In this case p1250, p1251,
p1252 are weighted with the dynamic factor p1243.
If several modules are connected to the DC link, then the dynamic factor must be increased corresponding to the
ratio of the additional capacitances to the capacitance of the module involved.
Note: The pre-setting of the dynamic factor is based on the power units connected to DRIVE-CLiQ. It is assumed that the
power units connected via DRIVE-CLiQ are also electrically connected to the DC link. If this is not the case, then the
dynamic factor must be optimized manually.
356
Calculated: -
Dyn. index: -
Unit group: -
Scaling: p2001
Max
- [V]
Calculated: CALC_MOD_CON
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
10000 [%]
List Manual (LH2), 07/2016, A5E03263479A
Access level: 3
Func. diagram: 6220
Unit selection: -
Expert list: 1
Factory setting
- [V]
Access level: 3
Func. diagram: 6220
Unit selection: -
Expert list: 1
Factory setting
100 [%]
SINAMICS G130/G150