SMC Networks LECSN-T Series User Manual

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17．HOW TO USE INDEXER
17.3.3 Shortest rotating indexer operation
This operation mode automatically changes a rotation direction to the shortest distance to execute positioning
to a station.
Select a station No. with "Target point table" to execute positioning. For the servo motor speed, acceleration
time constant and deceleration time constant during operation, the values set in the object are used.
(1) Setting
Set objects and parameters as shown below.
Item
Object/parameter to be used
Setting
Indexer mode (idx)
selection
Modes of operation
Set "-103".
Next station position
Target point table
Set any next station No.
Shortest rotating indexer
selection
Controlword
Switch on "Controlword bit 6 (Operation
mode)".
Servo motor speed
Profile velocity
Set the servo motor speed.
Acceleration time constant
Profile Acceleration
Set the acceleration time constant.
Deceleration time constant
Profile deceleration
Set the deceleration time constant.
Speed limit
Max profile velocity
Set a speed limit value for during operation.
Torque limit (Note)
Positive torque limit value
Negative torque limit value
Set a torque limit value for during operation.
Torque limit value2
Set a torque limit value for during stop.
[Pr. PT39]
Set a time period for switching the torque limit
value in operation to in stop.
No
te.
The torque limit will change from the setting value of "Torque limit value2" to the setting value of "Positive torque
limit value" or "Negative torque limit value" when "Controlword bit 4 (New set-point)" is inputted. After the output of
S_MEND (Travel completion) and the time set with [Pr. PT39] has passed, the torque limit will be switched from the
set value of "Positive torque limit value" or "Negative torque limit value" to the set value of "Torque limit value2".
(2) Other parameter settings
The setting is the same as in the rotation direction specifying indexer. Refer to section 19.3.2 (2).
(3) Operation
Selecting the next station with "Target point table" and switching on "Controlword bit 4 (New set-point)"
starts positioning to the selected next station at the set speed, acceleration time constant and
deceleration time constant.
Item
Object to be used
Setting
Station No. selection
Target point table
Set a station No. at which positioning starts.
Start
Controlword
Switch on "Controlword bit 4 (New set-point)".

SMC Networks LECSN-T Series Specifications

General

Brand	SMC Networks
Model	LECSN-T Series
Category	Controller
Language	English