M
OTION
C
ONTROL
Networked Indexer/Driver User Manual
ADVANCED MICRO CONTROLS INC.
30
Basic Move Types (continued)
CW/CCW Jog Move (continued)
As shown below, a Jog Moves begins at the programmed Starting Speed, accelerates at the programmed rate
to the Programmed Speed and continues until a stop condition occurs. If it is a
Controlled Stop Condition
, the
Networked Driver will decelerate the motor to the starting speed and stop without losing position. If it is an
Immediate Stop Condition
, the motion stops immediately and the position becomes invalid.
It is possible to change the speed of a Jog Move without stopping the motion. The Programmed Speed, Accel-
eration, and Deceleration parameters can be changed during a Jog Move. When the Programmed Speed is
changed, the motor will accelerate or decelerate to the new Programmed Speed using the new accelerate/
decelerate parameter values. If you write a Programmed Speed to the unit that is less than the starting speed,
the Jog Move will continue at the previously programmed speed.
Figure R3.8 Jog Move
Controlled Stop Conditions
The Jog Move Command bit is reset to “0”.
An inactive-to-active transition on an input configured as a
Stop Jog or Registration Move
Input.
You toggle the Hold_Move control bit in the Network Output Data. The use of the Hold_Move and
Resume_Move bits is explained in the
Immediate Stop Conditions
The Immediate_Stop bit makes a 0
1 transition in the Network Input Data.
A inactive-to-active transition on an input configured as an E-Stop Input.
A CW or CCW Limit Switch is reached. If the limit that is reached is the same as the direction of travel,
for example, hitting the CW limit while running a CW move, a
Reset Errors
command must be issued
before moves are allowed in that direction again. If the limit that is reached is opposite the direction of
travel, a
Reset Errors
command does not have to be issued.
Note that it is possible to
start
a move while a CW or CCW Limit Switch is active as long as
the direction of travel is
opposite
that of the activated Limit Switch. For example, it is possible
to start a CW Jog Move while the CCW Limit Switch is active.
SP
E
E
D
POSITION
Change in
Parameters
Change in
Parameters
Controlled
Stop Condition