Siemens MICROMASTER 440 - Page 255

Issue 10/06 3 Functions
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0
255
Torque limiting
The value specifies the maximum permissible torque whereby different limits are
parameterizable for motoring and regenerative operation.
¾ P1520 CO: Upper torque limit value
¾ P1521 CO: Lower torque limit value
¾ P1522 CI: Upper torque limit value
¾ P1523 CI: Lower torque limit value
¾ P1525 Scaling, lower torque limit value
The currently active torque limit values are displayed in the following parameters:
¾ r1526 CO: Upper torque limit value
¾ r1527 CO: Lower torque limit value
f
1
~
Torque limitation
Resultant
torque limit
Power
limitation
|f
act
r1526
r1527
Stall
limitation
P1530
P1531
f
1
~
2
Constant
torque
f
stall
Constant
power
|
|M|
Stall
power
Fig. 3-109 Torque limits
Power limits
This value specifies the maximum permissible power, whereby different limits can
be parameterized for motoring and regenerative operation.
¾ P1530 Motor power limit
¾ P1531 Regenerative power limit
Stall limiting (locked rotor limiting)
The stall limiting is internally calculated in the drive from the motor data.