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Parameters
Parameter list
p1340[0...n]
I_max frequency controller proportional gain / I_max_ctrl Kp
VECTOR
Can be changed: U, T
Data type: Floating Point
P-Group: V/f control
Min
0.000
Description:
Proportional gain of the I_max voltage controller.
The I_max controller reduces the drive converter/inverter output current if the maximum current (r0067) is
exceeded.
In the V/f operating modes (refer to p1300) for the I_max control, one controller is used that acts on the output fre-
quency and one controller that acts on the output voltage. The frequency controller reduces the current by decreas-
ing the converter output frequency. The frequency is reduced down to a minimum value (equaling twice rated slip).
If the overcurrent condition cannot be successfully resolved using this measure, then the drive converter output
voltage is reduced using the I_max voltage controller. Once the overcurrent condition has been resolved, the drive
is accelerated along the ramp set in p1120 (ramp-up time).
Dependency:
In the V/f modes (p1300) for textile applications and for external voltage setpoints, only the I_max voltage controller
is used.
Notice:
If the I_max controller is de-activated, please note that the output current, when the maximum current is exceeded
(r0067), is now no longer reduced. However, overcurrent alarms are generated. The drive is shut down if the over-
current limit (r0209) is exceeded.
Note:
p1341 = 0: I_max frequency controller de-activated.
p1341[0...n]
I_max frequency controller integral action time / I_max_ctrl Tn
VECTOR
Can be changed: U, T
Data type: Floating Point
P-Group: V/f control
Min
0.000 [s]
Description:
Sets the integral action time for the I_max frequency controller.
Dependency:
Refer to: p1340
r1343
I_max controller frequency output / I_max_ctrl f_outp
VECTOR
Can be changed: -
Data type: Floating Point
P-Group: V/f control
Min
- [1/min]
Description:
Displays the effective frequency limit.
Dependency:
Refer to: p1340
r1344
I_max controller voltage output / I_max_ctrl U_outp
VECTOR
Can be changed: -
Data type: Floating Point
P-Group: V/f control
Min
- [Veff]
Description:
Displays the amount by which the converter output voltage is reduced.
Dependency:
Refer to: p1340
1-178
Data set: DDS
Units group: -
Max
0.500
Data set: DDS
Units group: TIME
Max
50.000 [s]
Data set: -
Units group: SPEED_ROT
Max
- [1/min]
Data set: -
Units group: VOLTAGE_AC_EFF Unit selection: -
Max
- [Veff]
Siemens AG 2004 All Rights Reserved
SINAMICS G List Manual, Edition 12.2004
Access level: 3
Function diagram: 1690
Unit selection: -
Factory setting
0.000
Access level: 3
Function diagram: 1690
Unit selection: -
Factory setting
0.300 [s]
Access level: 3
Function diagram: 1690
Unit selection: -
Factory setting
- [1/min]
Access level: 3
Function diagram: 1690
Factory setting
- [Veff]
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