Siemens SIMATIC ET 200pro - Application-Specific Functions; Functions that Match the Application

Setting functions
8.7 Application-specific functions
SIMATIC ET 200pro FC-2 converter
140 Operating Instructions, 04/2015, FW V4.7.3, A5E34257324B AB
If the load of the motor is so large during stationary operation that the motor current reaches
the current limit, the I-max controller reduces the speed and the motor voltage until the motor
current is in the permissible range again.
If the motor current reaches the current limit during deceleration, the I-max controller extends
the deceleration operation.
Settings
You only have to change the factory settings of the I-max controller if the drive tends to
oscillate when it reaches the current limit or if it is shut down due to overcurrent.
Table 8- 14 I-max controller parameters
Parameter
Description
p0305
Rated motor current
p0640
Motor current limit
p1340
Proportional gain of the I-max controller for speed reduction
p1341
Integral time of the I-max controller for speed reduction
r0056.13
Status: I-max controller active
r1343
Speed output of the I-max controller
Shows the amount to which the I-max controller reduces the speed.
For more information about this function, see function diagram 6300 in the List Manual.
8.7
Application-specific functions
8.7.1
Functions that match the application
The converter offers a series of functions that you can use depending on your particular
application:
● Unit changeover (Page 141)
● Braking functions
– Braking the motor electrically (Page 145)
– Motor holding brake (Page 148)
● Automatic restart
Details can be found in the List Manual from parameter p1210, see also: Manuals for
your inverter (Page 248).