AMCI SD17060E-K, User Manual

Page: 52 / 110

H
OMING AN
AMCI N
ETWORKED
D
RIVER
Networked Indexer/Driver User Manual
ADVANCED MICRO CONTROLS INC.
52
Homing Configurations
A Networked Driver must have one of its DC inputs configured as the home input before one of the CW/CCW
Find Home commands can be issued.
1) You do not have to configure and use CW or CCW Limits. If you choose to configure the
module this way, then the Networked Driver has no way to automatically prevent overtravel
during a homing operation. You must prevent overtravel by some external means, or ensure
that the homing command is issued in the direction that will result in reaching the homing
input directly.
2) You can use a bit in the Network Output Data (the Backplace_Proximity_Bit) as a home
proximity input. Using this bit is completely optional and prevents the Home Input from
being acted upon until the Backplace_Proximity_Bit makes a 0

1 transition.
Homing Profiles
1) The CW Find Home command is used in all of these examples. The CCW Find Home com-
mand will generate the same profiles in the opposite direction.
2) The homing diagrams show CW and CCW direction on their vertical axes. These are the
directions that will occur if using an AMCI motor that is wired as shown in this manual. It is
possible to reverse the direction of rotation by swapping one connections on one of the
motor windings.
Home Input Only Profile
Figure R5.1 below shows the move profile generated by a +Find Home command when you use the Home
Input without the Backplace_Proximity_Bit.
Figure R5.1 Home Input Profile
1) Acceleration from the configured Starting Speed to the Programmed Speed
2) Run at the Programmed Speed until the Home Input activates
3) Deceleration to the Starting Speed and 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 Home Input is active when the command is issued, the move profile begins at step 5
above.
(CW)
(CCW)
S
P
E
E
D
POSITION
Home Limit
Switch