User manual

12 Functions and operations in the tension control mode
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12.7 Speed limit
Since speed control is not performed during tension controlled operation, the motor may operate at high speed
if the load is too small. To prevent this from happening, you can limit the speed of the motor operating under
tension control.
Set a speed limit value under each of eight operation data numbers from 0 to 7.
When the system parameter for analog input signals [SyS-1-05] is set to “Enable,” two analog points and six
digital points are available to assign settings. If the parameter is set to “Disable,” eight digital points are
available to assign settings.
Analog input signals [SyS-1-05]
Operation data Enable (initial value) Disable
No.0
Analog setting
(internal potentiometer VR2)
Digital setting
No.1
Analog setting
(External potentiometer or
external DC voltage)
Digital setting
No.2 to 7 Digital setting
Note
If operation data No. 0 is selected as the speed limit, other data
∗
set under operation data
No. 0 will also be selected. Different operation data numbers cannot be selected for
individual parameters.
∗
Simple mode: Tension command value (p.107)
High function mode I: Tension command value (p.111), initial diameter, material
thickness, final diameter (p.113), taper (p.114)
High function mode II: Tension command value (p.111), initial diameter, material
thickness, final diameter (p.113), material inertial moment, core inertial moment (p.114),
taper (p.114)
Select a desired speed limit value from among the predefined settings, based on a combination of ON/OFF
statuses of M0 to M2 inputs.
Operation data M2 input M1 input M0 input
No.0 OFF OFF OFF
No.1 OFF OFF ON
No.2 OFF ON OFF
No.3 OFF ON ON
No.4 ON OFF OFF
No.5 ON OFF ON
No.6 ON ON OFF
No.7 ON ON ON

Using the internal potentiometer VR2
1.
Set the system parameter for analog input signals [SyS-1-05] to “Enable.”
Note
When a system parameter has been changed, the new parameter will become
effective after the power is cycled. If a 24 VDC power supply is used, also cycle the
24 VDC power supply.
2.
Turn the M0 to M2 inputs OFF and select operation data No. 0.
3.
Set the speed limit value using the internal
potentiometer VR2.
Setting range: 0 to 5500 r/min
Factory setting: 0 r/min
VR2