Programming manual SCU-series
HB-37500-820-10-12F-EN SCU Programming manual
Page 185 of 252
Status: 19.03.2021
Input example 1:
At a production machine, access to the work zone shall be guaranteed at certain positions of the
main input axis for manual input or for settings. In this position, the drive remains active, and is
only monitored for a standstill. The limits of the work zone are variable, and shall be monitored
electronically in a safety-relevant mode instead of via mechanical safety limit switch. The
movement that shall be actively monitored is a linear movement. An absolute encoder is connected
with the main drive axis of the linear length measuring system. The drive functions with an electric
motor with an integrated motor feedback system and an intermediate gear.
1. Limit position
The referential zero postion of the main drive axle is situated in the top dead center. The
subordinate mechanical follow-up is X1 = -5 mm.
The lower limit position is ati 600 mm + a 5 mm safety limit.
=> X2 = 605 mm
2. Type of the speed selection
The drive regulator / the position regulator uses a ramp control (shock limiter) for acceleration with
resulting S-slip of velocity to minmise deviations and process markers => selection of the S-shape
3. Selection of the limit values
The other limit values are taken from the plant setting.
Maximum acceleration = 1000 mm/s²
Maximum change of acceleration = 3000 mm/s³