Rockwell Automation 9329 Drive Application Software Tension Control Gen. Units - Manual (Page 20)

FM – Tension Control
Drive Application Software – page 20 of 52
4.4.21 J_sec
J_sec is the total inertia reflected back to the motor. For variable diameter rolls, the
inertia comp routine will calculate this value. For constant diameter rolls, the drive
calculates this value. For the PowerFlex 700S, parameter 9 is the total system inertia
reflected back to the motor in seconds. Inertia in seconds is define as the Time to
reach base motor speed at rated motor torque.
Usage – Connect to the J_sec tag or set the value of J_sec in the JSR Instruction.
4.4.22 LogicStat
This is the logic status from the tension control routine. The logic status tag is used
by other routines in the Tension Control Function Module.
Bit 00 Control On: The tension control regulator is active.
Bit 01 Tension Control: The tension control regulator is controlling tension.
Bit 02 Torque Control: The tension control regulator is controlling torque.
Bit 03
Dancer Control: The tension control regulator is controlling dancer
position.
Bit 04
Torque Follower Control: The drive is following the torque reference
from another drive.
Bit 05
Torque Trim: The tension control regulators output is summing with the
drive torque reference.
Bit 06
Speed Trim: The tension control regulator’s output is summing with
drive’s velocity reference.
Bit 07
Bit 08
PI Integral Hold High: The PI Regulator is inhibited in increasing its
output.
Bit 09
PI Integral Hold Low: The PI Regulator is inhibited form decreasing its
output.
Bit 10
Stall Tension: The Tension Control’s Reference is the stall tension
reference.
Bit 11
TrqFbJloss: The Torque feedback from the drive includes the inertia
and losses
Bit 12 Torque Memory On: The Torque Memory is enabled.
Bit 13
Bit 14
Bit 15
Bit 16 Tension Reference Off: The tension control regulator is not active
Bit 17
Dancer Reference Off: The tension control regulator is not controlling
position of a dancer.
Bit 18
Min/Max Torque: The tension control regulator is set up for Min/Max
Torque.
Bit 19
Min/Max Torque On. The tension control regulator is actively controlling
torque.
Bit 20 Regulator On: The tension control regulator is on.
Bit 21 Regulator Off: The tension control regulator is off.
Bit 22
FeedForwardOn: The tension control algorithm is feed forwarding a
torque signal.
Bit 23 TorqueFeedForwardNegage: The feed forward term is negated.
Bit 24 TorqeFeedbackNegate: The Torque feedback is negated.
Bit 25
TrimOutputNegate: The output of the tension control regulator is
negated
Bit 26 TorqueReferenceOn: The drive is following a torque follower
Bit 27 -
31
Not used