Rockwell Automation 1395 Reel Tension Paster Adapter - Manual (Page 11)

Publication 1395-RTP-5.1 - September 1997
Chapter
1
Drive Description
Drive System The Drive System is designed to utilize tension feedback from an
Unwind Dancer to regulate paper roll tension, allowing for
continuous, non-stop pasting of the new roll to the existing web.
Controller The Drive System utilizes a Bulletin 1395 microprocessor based
Drive to control the speed and torque of the associated motor. The
Drive employs line overcurrent devices to reduce the potential for
damage to power semiconductor devices caused by short circuit
currents.
The Drive also utilizes three microprocessors on the main control
board to control the regulator, control logic functions, and control
SCR firing and system communication functions. In addition, the
digital reference adapter utilizes another microprocessor to provide
for a digital-to-digital line speed reference as well as special Dancer
potentiometer circuitry and on-board drive state machines for outer
loop control of the Drive.
Extensive diagnostics are built into the Drive to aid in
troubleshooting, thus, correcting many Drive and related system
problems. The Drive resolves all internal faults to guard against
needless Drive trips during normal operation.
To better understand the associated Drive, refer to the appropriate
Bulletin 1395 Instruction Manual to obtain in-depth knowledge of the
Drive functions.