ABB ACS800 Series Firmware Manual page 124

112
No. Name/Value
63.15 TENSION MODE
CLOSE LP SPD
OPEN LP TQ
CLOSE LP TQ
63.16 MODE TRANSITION
NOT SEL
DI1 (NO TRM)
DI2 (NO TRM)
DI3 (NO TRM)
DI4 (NO TRM)
DI5 (NO TRM)
DI6 (NO TRM)
DI7 (NO TRM)
DI8 (NO TRM)
DI9 (NO TRM)
DI10 (NO TRM)
D11 (NO TRM)
DI12 (NO TRM)
Actual signals and parameters
Description
Selecting "CLOSE LP SPD" mode means the drive operates as a
speed controller with the output of the tension PI regulator adjusting
the speed. Depending on the status of
drive can also be switched to a torque controlled drive with no trim
function.
Selecting "OPEN LP TQ" mode means the drive operates as a torque
controller with no trim function. The torque reference is calculated
from 03.08 TENSION REF,
RATIO, 63.17 STATIC FRICTION and
FRICTION.
Note: Open loop torque control is NOT the recommended method for
controlling web tension. The torque applied to the section is calculated
from input parameters. Torque requirements to maintain constant
tension vary based on mechanical and application characteristics.
Since actual tension feedback is not used in this mode, the drive will
not respond to unknown load changes. Therefore, precision may be
lost during the process.
Selecting "CLOSE LP TQ" mode means the drive operates as a torque
controller with the output of the tension PI regulator adjusting the
torque reference. The torque reference is calculated from
TENSION REF, 03.13 ROLL DIAMETER,
STATIC FRICTION and 63.18...63.22
on the status of 63.16 MODE TRANSITION, the drive can also be
switched to a torque controlled drive with no trim function. "CLOSE LP
TQ" mode is recommended for precise web tension regulation.
Note: Regardless of which mode is selected, when
CTL ENABLE is disabled, the drive is a speed controller.
Speed control with trim from tension transducer (if tension is enabled). 1
Torque control with no tension transducer trim.
Torque control with trim from tension transducer (if tension is enabled). 3
When the selected input is "1", the mode selected in
MODE switches to open loop torque. When the selected input is "0",
the mode reverts back to its original selection.
Note: Tension control must be enabled when using this mode; if it is
not, the drive is a speed controller.
Mode transition is not selected.
Digital input DI1 = 1 switches the control to open loop torque (if tension
is enabled).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
See selection DI1 (NO TRM).
63.16 MODE TRANSITION, the
03.13 ROLL DIAMETER, 60.02
63.18...63.22 LINEAR
60.02 GEAR RATIO,
LINEAR FRICTION. Depending
63.09
63.15
FbEq
GEAR
03.08
63.17
TENSION
2
TENSION
1
2
3
4
5
6
7
8
9
10
11
12
13