20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
Tel: (860) 585-1254 Fax: (860) 584-1973 http://www.amci.com
Networked Indexer/Driver User Manual
M
OTION
C
ONTROL
39
Electronic Gearing (continued)
Controlled Stop Conditions
The encoder stops moving.
Both of the Jog Move command bits equal zero.
Electronic Gearing moves cannot be brought to a controlled stop by using the Hold_Move control bit in
the Network Output Registers.
Immediate Stop Conditions
The Immediate_Stop bit makes a 0
1 transition in the Network Output Data.
A positive transition on an input configured as an E-Stop Input.
A CW or CCW Limit Switch is reached.
Advanced Ratio Control
The ELGearing Multiplier and Divisor values give you a great deal of control over the ratio of motor turns per
encoder turn, but you can achieve even finer control by adjusting the Motor_Resolution parameter.
The Z pulse is not used to correct the encoder position once per turn, so you can actually program the
Motor_Resolution parameter to any value you want within its valid range. For example, if your encoder out-
puts 4,096 pulse per turn (a 1,024 line encoder) and you set the Motor_Resolution parameter to 8,192, you
will have built a 2:1 gear down into your system before applying the ELGearing Multiplier and Divisors.
(Two rotations of the encoder = 8,192 counts = 1 motor rotation.)
This technique allows you to set a median gear ratio in your system that you can adjust on-the-fly by using the
ELGearing Multiplier and Divisor parameters.
