PA Industries Edge Sequential Servo Roll Feed SRF-100/125/200/300/400/500/600 - Operation Manual - Manual (Page 4)

ULTRA EDGE SEQUENTIAL 6 /05/2002
4
All Ultra Edge Sequential controls are conveniently located on the front side of the electrical enclosure
CONTROL/DEVICE DESCRIPTION
Power On/Reset button Turns controller on, resets the servo drive.
In Position indicator light, white Turns on when move is complete and motor is holding position.
Cycle Start illuminated button, green Puts controller into “Auto” mode from “Manual” mode, starts Auto cycling.
Cycle Stop button, red: Stops Auto cycling and returns the controller to “Manual” mode.
Emergency Stop mushroom button, red Shuts controller off and any other equipment wired to its auxiliary contact.
Operator terminal Displays controller’s data, current feed status, drive error codes and enters data into
controller.
“Programming Locked / Unlocked” key-
switch Locks access to programming.
Forward / Reverse remote jog pendant Pendant is attached to the enclosure through retractile cable.
2.3 SERVO MOTOR/DRIVE OPERATION
The introduction of servomotor technology to the press roll feed has pushed the limits of accuracy, adjustability,
and performance to levels previously unattainable.
The following example is based on the Ultra Edge Servo Roll Feed Standard, US (SRF-125, 200, 300, 400, 500,
600) models. The actual numbers for SRF-100 or metric models are different.
Each revolution of the servomotor produces 1048576 encoder pulses. Every 2.909 revolutions of the servo motor shaft
produce 1 revolution of the feed rollers. The circumference of the lower roll is approximately 11.138 inches.
When a new feed pitch is entered into the system, the built in computer calculates the correct number of electronic
“pulses” it must receive from the motor mounted encoder in order to rotate the feed rolls the correct distance.