SINAMICS G120 Control Units CU240B-2/CU240E-2
List Manual (LH11), 01/2016, A5E33839529
195
2 Parameters
2.2 List of parameters
Note: For bit 00:
De-activate the ramp-up for Vdc_min control.
For drives with a mechanical system that can oscillate and high moment of inertia, the speed can be more quickly
tracked.
For bit 02:
When the line supply returns, normal operation is resumed earlier, and the system does not wait until the Vdc min
controller reaches the setpoint speed.
Description: Displays the switch-in level for the Vdc_max controller.
If p1294 = 0 (automatic sensing of the switch-in level = off), then the following applies:
r1282 = 1.15 * sqrt(2) * p0210 (supply voltage)
If p1294 = 1 (automatic sensing of the switch-in level = on), then the following applies:
r1282 = Vdc_max - 50.0 V (Vdc_max: Overvoltage threshold of the power unit)
r1282 = Vdc_max - 25.0 V (for 230 V power units)
Dependency: Not visible with application class: "Dynamic Drive Control" (DDC, p0096 = 2)
Notice: If the activation level of the Vdc_max controller is already exceeded in the de-activated state (pulse inhibit) by the DC
link voltage, then the controller can be automatically de-activated (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 * r1282 and
the controller output is zero.
Description: Sets the dynamic factor for the DC link voltage controller (Vdc_max controller).
100% means that p1290, p1291, and p1292 (gain, integral time, and rate time) are used in accordance with their
basic settings and on the basis of a theoretical controller optimization.
If subsequent optimization is required, this can be carried out using the dynamic factor. In this case, p1290, p1291,
and p1292 are weighted with the dynamic factor p1283.
Dependency: Not visible with application class: "Dynamic Drive Control" (DDC, p0096 = 2)
Description: Sets the monitoring time for the Vdc_max controller.
If the down ramp of the speed setpoint is held for longer than the time set in p1284, then fault F07404 is output.
Dependency: Not visible with application class: "Dynamic Drive Control" (DDC, p0096 = 2)
Bit field: Bit Signal name 1 signal 0 signal FP
00 Vdc min control (U/f) without up ramp Yes No -
02 Vdc min shorter wait time when the line
returns
Yes No -
r1282 Vdc_max controller switch-in level (U/f) / Vdc_max on_level
PM230
PM230_STO
PM240
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2001 Dyn. index: -
Unit group: - Unit selection: - Func. diagram: 6320
Min Max Factory setting
- [V] - [V] - [V]
p1283[0...n] Vdc_max controller dynamic factor (U/f) / Vdc_max dyn_factor
PM230
PM230_STO
PM240
Access level: 3 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 6320
Min Max Factory setting
1 [%] 10000 [%] 100 [%]
p1284[0...n] Vdc_max controller time threshold (U/f) / Vdc_max t_thresh
PM230
PM230_STO
PM240
Access level: 3 Calculated: p0340 = 1 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0.000 [s] 300.000 [s] 4.000 [s]
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