ABB ACS800 Series Firmware Manual page 125

No. Name/Value
FBA (NO TRM)
63.17 STATIC FRICTION
-1000.0...1000.0 Nm
-1000.0...1000.0 lbft
Description
See selection DI1 (NO TRM). Instead of a digital input, the command
comes from 06.03 DATASET 1 WORD 3 bit 02. See chapter
control.
This is the mechanical friction of the section. This parameter must be
adjusted if torque control is to be used at any time. For proper
adjustment of this parameter, use one of the following two procedures.
Procedure 1
1. Place an empty core in the section.
2. Set 63.09 TENSION CTL ENABLE to "NOT SEL".
3. Change to LOC mode on the keypad.
4. Set the keypad REF to 10% of
5. Start the drive via the keypad.
6. Multiply 01.05 TORQUE by
7. Enter the above result in 63.17 STATIC FRICTION.
Procedure 2
1. Place an empty core in the section.
2. Set 63.15 TENSION MODE to "OPEN LP TQ".
3. Enable tension control.
4. Set the tension setpoint to 0.
5. Start the drive.
6. At zero speed, rotate the core slightly by hand. Slightly increase
63.17 STATIC FRICTION. As you continue to increase the
parameter, the core will slowly decrease in speed and, when it
nearly comes to a stop, the correct value has been entered.
Note: The friction offset should be entered as a negative value in
Unwind sections. Since the web is pulled from the section, the friction
actually increases the amount of tension on the web. Therefore, less
tension torque is required.
Setting range.
11.05 EXT REF1 MAXIMUM.
99.11 CALC MOTOR TORQUE.
Actual signals and parameters
113
FbEq
14
Fieldbus
10 = 1 Nm
10 = 1 lbft