Siemens SINAMICS G120 List Manual page 188

2 Parameters
2.2 List of parameters
p1234[0...n] Speed at the start of DC braking / DCBRK n_start
Access level: 2
Can be changed: U, T
Unit group: -
Min
0.00 [rpm]
Description: Sets the starting speed for DC braking.
If the actual speed falls below this threshold, then DC braking is activated.
Dependency: Refer to: p1230, p1231, p1232, p1233, r1239
r1239.8...13 CO/BO: DC braking status word / DCBRK ZSW
Access level: 2
Can be changed: -
Unit group: -
Min
-
Description: Status word of the DC braking.
Bit field: Bit
08
10
11
12
13
Dependency: Refer to: p1231, p1232, p1233, p1234
Note: For bit 12, 13:
Only effective for p1231 = 14.
p1240[0...n] Vdc controller configuration (vector control) / Vdc ctr config vec
PM230 Access level: 3
PM230_STO
Can be changed: U, T
Unit group: -
Min
0
Description: Sets the controller configuration of the DC link voltage (Vdc controller) in the closed-loop control mode.
For U/f control: see p1280.
Value: 0:
1:
3:
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p1245
Refer to: A07400, A07401, A07402, F07405, F07406
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 power unit 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. If overvoltage faults occur in spite of the Vdc_max controller
being active, the ramp-down time in p1121 might need to be increased.
- set the input voltage p0210 as low as possible in line with the supply voltage (in so doing avoid A07401).
188
Signal name
DC braking active
DC braking ready
DC braking selected
DC braking selection internally inhibited
DC braking for OFF1/OFF3
Inhib Vdc ctrl
Enable Vdc_max controller
Enable Vdc_min controller and Vdc_max controller
Calculated: -
Scaling: -
Unit selection: -
Max
210000.00 [rpm]
Calculated: -
Scaling: -
Unit selection: -
Max
-
1 signal
Yes
Yes
Yes
Yes
Yes
Calculated: -
Scaling: -
Unit selection: -
Max
3
SINAMICS G120 Control Units CU240B-2/CU240E-2
Data type: FloatingPoint32
Dyn. index: MDS, p0130
Func. diagram: 7017
Factory setting
210000.00 [rpm]
Data type: Unsigned32
Dyn. index: -
Func. diagram: -
Factory setting
-
0 signal
No
No
No
No
No
Data type: Integer16
Dyn. index: DDS, p0180
Func. diagram: 6220
Factory setting
1
List Manual (LH11), 01/2016, A5E33839529
FP
7017
7017
-
-
-