Siemens CU240B-2 Original Instructions

Setting functions
8.7 Application-specific functions
Inverter with CU230P-2 Control Units
Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
291
8.7.6
Free technology controllers
Additional technology controllers
The inverter has additional technology controllers in the following parameter ranges:
● p11000 … p11099: free technology controller 0
● p11100 … p11199: free technology controller 1
● p11200 … p11299: free technology controller 2
Refer to the parameter descriptions and in function diagram 7030 of the associated List
Manual for additional details.
8.7.7
Monitor the load torque (system protection)
In many applications, it is advisable to monitor the motor torque:
● Applications where the load speed can be indirectly monitored by means of the load
torque. For example, in fans and conveyor belts with too low a torque indicates that the
drive belt is torn.
● Applications that are to be protected against overload or locking (e.g. extruders or
mixers).
● Applications in which no-load operation of the motor represents an impermissible
situation (e.g. pumps).
Load torque monitoring functions
The inverter monitors the motor torque in different ways:
● No-load monitoring
The inverter generates a message if the motor torque is too low.
● Blocking protection
The inverter generates a message if the motor speed cannot match the speed setpoint
despite maximum torque.
● Stall protection:
The inverter generates a message if the inverter control has lost the orientation of the
motor.
● Speed-dependent torque monitoring
The inverter measures the actual torque and compares it with a set speed/torque
characteristic.

Siemens CU240B-2 Specifications

General

Brand	Siemens
Model	CU240B-2
Category	Inverter
Language	English