January 2012 6.18 Spindles 1001
Spindle
Oriented spindle
stop (spindle point
stop)
Spindle
Oriented spindle
stop with rotating
spindle
An oriented spindle stop (spindle point stop) with rotating spindle and at high
speeds is executed in two steps if you set MP_M19MaxSpeed accordingly:
Rotational speed > 120 % of MP_M19MaxSpeed (phase 1):
The spindle is braked at the limit of current until the speed limit is reached
(speed control with V
nom
=0).
Rotational speed < 120 % of MP_M19MaxSpeed (phase 2):
The position controller is switched on at the rotational speed limit. The
actual position, actual speed and actual acceleration at the time of the
transition of phase 1 to 2 are the initial values for positioning under position
feedback control. This results in a continuous movement, speed and
acceleration until the target position is reached. The jerk is limited during
deceleration and positioning, whereby the maximum jerk can be set.
Settings in the configuration editor MP number
Axes
ParameterSets
[Key name of the parameter set]
CfgFeedLimits
M19MaxSpeed
M19NcSpeed
CfgSpindle
kvFactorM19
400307
400310
The spindle position must be measured by an encoder before an oriented
spindle stop can be executed. If the parameter CfgAxisHardware/
posEncoderType is set to no encoder, an oriented spindle stop is not
possible.
To Next Page
Loading...
