Parameters
List of Parameters
1-284
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: Parameter for selecting the control mode for the staging and destaging of external motors.
Selections 2 and 3 support selection options for the automatic swapping of the motors connected to the line
(autochange).
Value: 0: Fixed staging sequence
1: Staging based on absolute operating hours
2: AutoChange based on continuous operating hours
3: AutoChange based on absolute operating hours
Note: Re p2372 = 0:
Motor selection for staging/destaging follows a fixed sequence and is dependent upon the staging configuration
(p2371).
Re p2372 = 1:
Motor selection for staging/destaging is derived from the operating hours counter p2380. In the case of staging, the
motor with the least operating hours is connected. In the case of destaging, the motor with the most operating hours
is disconnected.
Re p2372 = 2:
Motor selection for staging/destaging is derived from the operating hours counter p2380. In the case of staging, the
motor with the least operating hours is connected. In the case of destaging, the motor with the most operating hours
is disconnected.
In addition, those motors which have been in operation continuously for longer than the time set in p2381 are
swapped automatically.
If p2371 = 4 (selection of three identical motors), the switch is only performed between two motors, if the required
input power of one single external motor is sufficient for the current operating point.
Re p2372 = 3:
Motor selection for staging/destaging is derived from the operating hours counter p2380. In the case of staging, the
motor with the least operating hours is connected. In the case of destaging, the motor with the most operating hours
is disconnected.
In addition, those motors which have been in operation for a total time longer than that set in p2382 are swapped
automatically.
Re p2372 = 2, 3:
This automatic swap (autochange) is only possible if the designated motor is not in operation. If all motors are in
operation, the swap will not be possible and alarm A07427 appears.
Autochange mode is only possible if p2371 = 2, 4 (motors of the same size).
Description: Threshold value for the delayed switching-in (staging) or non-delayed switching-out (destaging) of external motors
on the line. Motor staging is activated if the maximum speed is reached and the wait time in p2374 expires simulta-
neously.
Dependency: Refer to: p2374
p2372 AutoChange staging mode / AutoChg stag mod
Access level: 3 Calculated: - Data type: Integer16
Can be changed: T Scaling: - Data set: -
Min Max Factory setting
0 3 0
p2373 Staging switch-in threshold / Staging in_thresh
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: PERCENT Data set: -
Min Max Factory setting
0.0 [%] 200.0 [%] 20.0 [%]
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