Siemens G130 List Manual page 467

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p1821[0...n]
Dir of rot / Dir of rot
VECTOR_G
Can be changed: C2(3)
Data type: Integer16
P-Group: Motor
Not for motor type: -
Min
0
Description:
Setting to change the direction of rotation.
If the parameter is changed, it reverses the direction of rotation of the motor and the encoder actual value without
changing the setpoint.
Value:
0:
1:
Dependency:
Refer to: F07434
Danger:
When using external speed actual values for the speed controller (see p1440), for a direction of rotation change
(p1821 = 1), then its polarity must also be changed (e.g. for drive object ENCODER via p0410). Otherwise, a positive
coupling can occur in the speed control loop and the drive would then be accelerated up to the speed limit.
Caution:
For 12-pulse converters with 30° offset angle for system 2, for a direction of rotation reversal, the phase offset
changes by 60° as the sign of the angle offset changes. This can be adapted in p1810.15.
Changing the direction using p1820 or p1821 is not recognized by the "Safe Direction without encoder". As a
consequence, the limit provided by SDI (Safe Direction) from r9733 no longer functions.
Notice:
An appropriate fault is output for a drive data set changeover where the direction of rotation changes and the pulses
are enabled.
Note:
For operation with the phase sequence U/V/W, the direction of rotation is defined when viewing the face side of the
motor output shaft.
When changing the direction of rotation, the rotating field direction of the current controller is reversed. The speed
actual value (e.g. r0063) is also reversed so that the control sense is kept and internally causing the direction of
rotation to be reversed with the same setpoint. Further, the position actual values of the actual encoder are reversed
(e.g. r0482[0...2]).
p1820 can be used to reverse the direction of the motor without reversing the encoder actual value.
p1822
Power unit line phases monitoring tolerance time / PU ph monit t_tol
VECTOR_G
Can be changed: T
Data type: Unsigned32
P-Group: -
Not for motor type: -
Min
500 [ms]
Description:
Sets the tolerance time for line phase monitoring for blocksize power units.
If a line phase fault is present for longer than this tolerance time, then a corresponding fault is output.
Dependency:
Refer to: F30011
Notice:
When operating with a failed line phase, depending on the active power, values higher than the default value can
either immediately damage the power unit or damage it over the long term.
Note:
For the setting p1822 = maximum value, line phase monitoring is deactivated.
p1825
Converter valve threshold voltage / Threshold voltage
VECTOR_G
Can be changed: U, T
Data type: FloatingPoint32
P-Group: Modulation
Not for motor type: -
Min
0.0 [Vrms]
Description:
Sets the threshold voltage drop of the valves (power semiconductor devices) to be compensated.
Note:
The value is automatically calculated in the motor data identification routine.
SINAMICS G130/G150
List Manual (LH2), 07/2016, A5E03263479A
CW
CCW
Calculated: -
Dyn. index: DDS, p0180
Unit group: -
Scaling: -
Max
1
Calculated: -
Dyn. index: -
Unit group: -
Scaling: -
Max
540000 [ms]
Calculated: CALC_MOD_ALL
Dyn. index: -
Unit group: -
Scaling: -
Max
100.0 [Vrms]
2 Parameters
2.2 List of parameters
Access level: 3
Func. diagram: 4704, 4710,
4711, 4715, 5730, 6730, 6731,
6732
Unit selection: -
Expert list: 1
Factory setting
0
Access level: 4
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
1000 [ms]
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
0.6 [Vrms]
467

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