Provides constant tension or taper tension torque reference to a torque mode drive based on the following:
Core tension, minimum torque
Taper tension, change in tension as roll builds
Diameter compensation, increase torque with roll build
Friction compensation, torque increases with line speed
Inertia compensation, torque increases with line acceleration rate
Stall tension, parking torque selectable by contact closure

Torque reference output is +10 VDC maximum
Isolated line speed input for up to 240 VDC as signal input to radius computer and inertia compensation circuits

Accepts the following for diameter compensation
Line speed signal and winder speed signal to calculate roll radius on board and store in 8 bit digital memory
Externally generated signal from a sonic or optical sensor, +10 VDC max. at full diameter
Direct contact rider roll compensator to measure roll diameter. A +10 VDC reference is supplied to source a potentiometer

Maximum roll build range is 10 to 1

On-board velocity loop for jog speed control using armature voltage feedback that is selectable for 90 or 180 VDC

20 turn cermet calibration potentiometers

On-board 115 VAC relays allow contact closures from external logic to select jog, stall tension or memory reset functions