User Manual

Parameters
List of parameters
1-328
© Siemens AG 2009 - 2013 All Rights Reserved
SINAMICS G120 CU240B/E-2 Control Units List Manual (LH11), 01/2013
Dependency: The compound braking current is only activated if the DC link voltage exceeds the threshold value in r1282.
Compound braking does not operate:
- when DC braking is active (refer to p1230, r1239)
- as long as the motor is not magnetized (e.g. for flying restart)
- for vector control (p1300 >= 20)
- for synchronous motors (p0300 = 2xx)
Caution: Generally, increasing the braking current improves the braking effect when stopping the motor. However, if the
value is set too high, then the drive can be tripped (shut down) as a result of overcurrent or ground fault.
Recommendation: p3856 < 100 % x (r0209 - r0331) / p0305 / 2
Compound braking generates a current in the motor with a ripple manifesting the rotational frequency. The higher
the braking current is set, the higher the resulting ripple, especially when the Vdc(max) control is simultaneously
active (refer to to p1280).
Note: The parameter value is entered relative to the rated motor current (p0305). Compound braking is deactivated with
p3856 = 0%.
Description: Displays the status word of the compound braking.
Dependency: Refer to: p3856
Description: Exits quick commissioning (p0010 = 1) with automatic calculation of all parameters of all existing drive data sets
that depend on the entries made during quick commissioning.
p3900 = 1 initially includes a parameter reset (factory setting, the same as p0970 = 1) for all parameters of the drive
object; however, without overwriting the entries made during the quick commissioning.
The interconnections of PROFIBUS PZD telegram selection (p0922) and the interconnections via p15 and p1500
are re-established and all of the dependent motor, open-loop and control-loop control parameters are calculated
(corresponding to p0340 = 1).
p3900 = 2 includes the restoration of the interconnections of PROFIBUS PZD telegram selection (p0922) and the
interconnections via p15 and p1500 and the calculations corresponding to p0340 = 1.
p3900 = 3 only includes the calculations associated with the motor, open-loop and closed-loop control parameters
corresponding to p0340 = 1.
Value: 0: No quick parameterization
1: Quick parameterization after parameter reset
2: Quick parameterization (only) for BICO and motor parameters
3: Quick parameterization for motor parameters (only)
Notice: After the value has been modified, no further parameter modifications can be made and the status is shown in
r3996. Modifications can be made again when r3996 = 0.
Note: When the calculations have been completed, p3900 and p0010 are automatically reset to a value of zero.
When calculating motor, open-loop and closed-loop control parameters (such as for p0340 = 1) parameters associ-
ated with a selected Siemens catalog motor are not overwritten.
r3859.0 CO/BO: Compound braking status word / Compound Br ZSW
PM240 Access level: 3 Calculated: - Data type: Unsigned32
Can be changed: - Scaling: - Dyn. index: -
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
- - -
Bit field: Bit Signal name 1 signal 0 signal FP
00 Compound braking active Yes No -
p3900 Completion of quick commissioning / Compl quick_comm
Access level: 1 Calculated: - Data type: Integer16
Can be changed: C(1) Scaling: - Dyn. index: -
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0 3 0