Rockwell Automation 1746-HSCE,D17466.5 High-Speed Counter Module - Manual (Page 119)

Publication 1746-UM006B-EN-P - August 2005
Application Examples 6-7
Supplementary Examples This section contains three application examples that represent the
Range, Rate, and Sequencer Modes. Each example has a description,
timing information, and configuration worksheets. Additional
worksheets are contained in appendixes D and E.
Range Mode-Drilling Example
In this example a hole is drilled into a piece of stock. The drill bit is
spun by a single speed, single direction motor that is controlled by the
module. The feed motor has two speeds (fast and slow) and travels in
two directions (forward and reverse), it is controlled by the user
program. The forward motion is halted by energizing Forward Stop
(module output O:1/0).
The encoder (not shown) is connected directly to the feed motor
shaft. The Pulse Counter increments as the drill travels in the forward
direction and decrements as the drill travels in the reverse direction. A
limit switch is used to home the feed motor position when retracted.
The Range Mode is used in this example because you can easily
change the ranges to compensate for changes in hole depth and/or
thickness of stock.
Slow
10,250 – 11,000
Motor
Drill
Feed
Retract
Feed
Motor
Drill ON/OFF
Slow/Fast
Forward/Stop
Forward
SLC 5/02
Processor
Stock
Range 0 – 11,000
Slow 0 – 49
Drill ON
10,000 – 11,000
0 49 10,000 10,249 11,000
O:1/2
O:2/0
O:1/1
O:1/0
Encoder
Limit
Switch
Reverse
O:2/1
Output
Module
High-Speed
Counter Module
Fast 50 – 10,249