№
SX-DCT00221 -
16-
Panasonic Corporation
8. Operation setting
8-1. Operation spec
8-1-1.
Positioning operation
This product can save positioning information for a maximum of 4 points (the 1st to the 4th point), and allows operation
by use of I/O interface. Travel distance, speed setting, acceleration time, deceleration time, and coordinate (relative
travel/absolute travel) can be set for each point. Further, setting block operations allows operation to change speed set-
ting and position allowing continuous movements of position to position with a single operation command.
Homing must be completed for executing positioning operation. (It is possible to make homing unnecessary by Pr48.) If
operation command run such as operation start is input without homing completed, the run command is ignored. If limit
sensor is detected after completion of homing, hardware limit error (E-LT) is found. Travel distance is the addition of rota-
tion number and pulse of motor shaft. One rotation of motor shaft corresponds to 288 [pulses], therefore the travel dis-
tance is the rotation number x 288 + pulse [pulses].
e.g.) When 1 [rotations] and 144 [pulses] are set at the target position, the travel distance is 432 pulses, this repre-
sents a travel distance of 1.5 rotations. Negative values can also be set on the pulse/value. When 2 [rotations] –
144 [pulses] is set, it also represents the same travel distance of 1.5 rotations.
Single positioning command allows up to 32767 rotations at the maximum on the motor shaft.
When operation command is above 32767 rot 1 pulse, command execution error (E-rU) is found.
This product is provided with two types of positioning instruction function, i.e. point designation run and sequential run.
Operation to a designated point is executed by point designation run. In sequential run, point number is automatically
updated (such as 1
2
3
1
・・・
) whenever an run signal is input.
①
Point designation run (using run start signal and point designation signal)
Set Pr50 – 53,70,71 as follows and assign the function of signal input. Of signal inputs 1 – 4,5,7 (
I
1 –
I
6), set the param-
eter used for run start at “8”, the input used for point designation 1 at “6”, and the input parameter used for point designa-
tion 2 at “7”. When point designation is not
assigned to signal input, such signal is always considered to be off.
(For example, when the 3rd and 4th point are not designated, it is not required to assign point designation 2.)
When run start is input after designation of point, the motor moves to any desired point.
Point designation 1
Point designation 2
OFF
ON
OFF
Runs to the 1st point.
Runs to the 2nd point.
ON
Runs to the 3rd point.
Runs to the 4th point.
