Rockwell Automation MD65 User Manual Version 2.0 - Manual (Page 166)

H-6 MD65 AC Drive User Manual
Counter Function
Digital inputs and outputs control the counter function and are
configured with Digital Inx Sel parameters (A051-A054) set to 19
“Counter In” and 21 “Reset Counter”.
Digital outputs (relay and opto type) define a preset level and
indicate when the level is reached. Level parameters Relay Out
Level (A056), Opto Out1 Level (A059) and Opto Out2 Level (A062)
are used to set the desired count value.
Parameters Relay Out Sel (A055), Opto Out1 Sel (A058) and Opto
Out2 Sel (A06)1 are set to 17 “Counter Out” which causes the
output to change state when the level is reached.
Example
• A photo eye is used to count packages on a conveyor line.
• An accumulator holds the packages until 5 are collected.
• A diverter arm redirects the group of 5 packages to a bundling
area.
• The diverter arm returns to its original position and triggers a
limit switch that resets the counter.
• Parameters are set to the following options:
– Digital In1 Sel (A051) set to 19 to select “Counter In”
– Digital In2 Sel (A052) set to 21 to select “Reset Counter”
– Relay Out Sel (A055) set to 17 to select “Counter Out”
– Relay Out Level (A056) set to 5.0 (counts)