Siemens SIMODRIVE 611U - Activating a Brake; Vertical Axis Application Case; Universally Activating the Braking Control in the SIMODRIVE 611

Expert functions
5.8 Activating a brake
Connecting the SIMODRIVE 611U to the Technology CPU
82 Product Information, 03/2008, A5E00272066-05
5.8 Activating a brake
5.8.1 Vertical axis application case
Introduction
When a braking sequential control is used in conjunction with a vertical axis, the axis should
remain at its position when the system is shutdown or in a fault situation.
The axis enable can be reset by an alarm in the technology CPU or by disabling the
MC_Power function (Enable input = false).
The extended brake control should allow the ON/OFF1, OFF2, OFF3 and enable operation
(enable pulse) bits to be switched off sequentially. This ensures that the brake is already
closed when the pulse enable for the axis is disabled, thus preventing the axis from twisting /
sagging.
5.8.2 Universally activating the braking control in the SIMODRIVE 611
Introduction
To universally activate the braking control of the SIMODRIVE 611 you must set the
P0850 to 1.
Procedure
Activating the braking control
The following parameters are available for the "motor holding brake" function:
Parameter Meaning
P0850 Activates the braking control
P0851 Brake opening time
P0852 Speed - close holding brake (SRM, ARM), motor speed - close holding brake (SLM)
P0853 Brake delay time
P0854 Controller disabling time