1. Variable Acceleration
Paper Unwind Software Diagram
New Reel
Tension Set Point
Diameter
Tension Torque
Paper Speed (MPM)
Diameter
Unwind Speed ( RPM)
Rewind Acceleration (MPM / Sec)
RADs / Sec2
PID
Load Cell Signal
K x Diameter
Paper Density
Motor
Constant
Torque
Reference
Diameter
Weight
Inertia
Variable Acceleration
Torque
Width
Volume
Select for
Tension Control
Shell Diameter
Diameter K2
Fixed Acceleration
Torque
Shell Inertia
Fixed Acceleration
Torque
Motor Inertia
Select for
Threading
Speed Trim
Line Speed Reference
RPM Reference
Speed
Reference
Diameter

2. Paper Rewind Software Diagram
Encoder F/B
S-Ramp
Acceleration Rate
Line Speed Ref.
Deceleration Rate
SEA
TEA
Power
Stage
Inch Accl. / Dccl. Rate
Accl. Rate
Line Speed
Set Point
Accl. / Dccl.
Torque
Speed
Limit
Threshold
R/W Drum Inertia
RS485
To Unwind Drive
RS485
Unwind RPM

3. Paper Machine Drive Software Diagram
Cascaded speed reference to succeeding sections
Incr
Draw Ratio
Decr
Speed Reference to speed controlled helper drives
Crawl Reference
Section Start Ramp
Roll RPM
Motor RPM
MPM
MPM
To section master precision reference
Speed Reference from previous section X + + ÷ X
Roll Diam xPI
Gear Ratio
Bypass
Slack Out
Load Cell Signal
PID
From section master torque demand
Bumpless Transfer
Torque reference to torque controller helper drive
Incr
Tension Reference X
Decr
Incr
Percent Load Share
Decr

4. Paper Machine Drive Software Diagram
Easy to use software development tool (DPL) allows sophisticated control software to be written for specific applications
Data entered and stored in the drive in common engineering units can be used for calibration and set up.
High priority programming tasks allow the use of real-time control algorithms
Accurate results from true floating point arithmetic eliminates rounding errors