AMCI SD17060E-K, Руководство пользователя

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H
OMING AN
AMCI N
ETWORKED
D
RIVER
Networked Indexer/Driver User Manual
ADVANCED MICRO CONTROLS INC.
54
Homing Profiles (continued)
Profile with Overtravel Limit
Figure R5.3 below shows the move profile generated by a +Find Home command when you use:

CW Overtravel Limit

Home Input without the Backplace_Proximity_Bit
The profile is generated when you encounter an overtravel limit in the direction of travel. (In this example,
hitting the CW limit while traveling in the CW direction.)
The Networked Driver will stop and issue a Home Invalid error to your host if you activate the
overtravel limit associated with travel in the opposite direction. i.e. Activating the CCW limit
during a CW Find Home command. This can occur if the overtravel limits are not wired to the
Networked Driver correctly, or if both overtravel limits are activated while the unit is trying to
find the home position.
Figure R5.3 Profile with Overtravel Limit
1) Acceleration from the configured Starting Speed to the Programmed Speed
2) Run at the Programmed Speed
3) Hit CW Limit and immediately stop, followed by a two second delay.
4) Acceleration to the Programmed Speed opposite to the requested direction.
5) Run opposite the requested direction until the Home Input transitions from Active to Inactive
6) Deceleration to the Starting Speed and stop, followed by a two second delay.
7) Return to the Home Input at the configured Starting Speed. Stop when the Home Input transitions from
Inactive to Active.
If the overtravel limit is active when the Find Home Command is active, the profile will begin
at step 4.
(CW)
(CCW)
S
PE
E
D
POSITION
Home
Limit
Switch
CW
Overtravel
Limit