Commissioning
The following applications require special settings of the motor holding brake. In these
cases, the motor holding brake control may only be commissioned by experienced
personnel:
All applications that involve moving and transporting people
Hoisting gear
Elevators
Cranes
● Before commissioning, secure any dangerous loads (e.g. loads on inclined conveyors)
● Suppress the motor holding brake control, e.g. by disconnecting the control cables
● When opening the motor holding brake, ensure that a torque is established that prevents
● Assigning parameters for the opening and closing times of the motor holding brake.
● Reestablish the control of the motor holding brake.
When a motor with a built-in holding brake is commissioned, a "clicking" sound in the motor
indicates that the brake has been properly released.
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
WARNING
the load from briefly dropping.
– Check the magnetizing time P0346; the magnetizing time is pre-assigned when
commissioning the system and must be greater than zero
– V/f control (P1300 = 0 to 3):
Set the boost parameters P1310 and P1311.
Define the motor torque when switching on using P1351 and P1352.
– Vector control (P1300 ≥ 20):
Define the motor torque when switching on using P1475.
It is extremely important that electromechanical brakes are controlled with the correct
timing in order to protect the brakes against long-term damage. The exact values can be
found in the technical data of the connected brake. Typical values:
– Depending on the brake size, brake opening times lie between 25 ms and 500 ms.
– Depending on the brake size, brake closing times lie between 15 ms and 300 ms.
r0052.12 ("Motor holding brake open") controls the brake.
Functions
7.9 Technological functions
201