BECKHOFF EL7037 - Manual (Page 141)

Commissioning
Fig. 164: Settings objects in the CoE
POS Settings
Velocity min.:
For reasons of performance when ramping down to the target position, the terminal needs a safety margin of
0.5%. That means that, depending on the maximum velocity reached and the configured deceleration, the
time is calculated at which the deceleration ramp begins. In order to always reach the destination reliably,
0.5% is subtracted from the position determined. If the deceleration ramp has ended and the destination has
not yet been reached, the terminal drives at the velocity “Velocity min.” to the destination. It must be
configured in such a way that the motor is able to stop abruptly and without a step loss at this velocity.
Velocity max.:
The maximum velocity with which the motor drives during a travel command.
Note
"Speed range" (index 8012:05 [ } 181]) [applies to EL70x7]
Velocity min./max. are standardised to the configured "Speed range" (Index 8012:05). This
means that for a "Speed range" of 4000 full steps/second, for example, for a speed output
of 100% (i.e. 4000 full steps/second) 10,000 should be entered under "Velocity max.", and
5,000 for 50% (i.e. 2000 full steps/second).
Acceleration pos.:
Acceleration time in the positive direction of rotation.
The 5 parameters for acceleration also refer to the set “Speed range” and are given in ms. With a setting of
1000, the terminal accelerates the motor from 0 to 100% in 1000 ms. At a speed of 50% the acceleration
time is linearly reduced to half accordingly.
Acceleration neg.:
Acceleration time in the negative direction of rotation.
EL70x7 141 Version 1.0