4. Operation
4.2 Operation in Positioner Mode
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ME0342-4B
[5] Tension Operation
■ Image diagram
■ Control method
The method of controlling the tension operation is the same as that described in [4] Pressing
operation. The control method is explained below by using the sample position table shown
above.
1) Position No.2 indicates the settings of tension operation. The settings of “Position” and
“Positioning width” show the tension start position and the tension quantity, respectively.
Attach – (minus sign) to the tension quantity. Specify the upper limit of the torque required for
tension in [%] (limited current value) in “Pressing”. The speed, acceleration, and deceleration
are the conditions of positioning to the coordinate value (80mm) set in “Position”.
2) Position No.1 indicates the tension start preparation position. Specify a value larger than the
coordinate value at which the tension provided by position No.2 ends (80 – 50 = 30mm) in
“Position”.
4.2 Operation in Positioner Mode
ME0342-4B 4-55
3) First define the positioning in position No.1. Next, the operation in position No.2 moves the
actuator to the position of 80mm at the setting speed and rating torque and change to the
tension operation. The actuator moves by 50mm in the negative direction in the tension
operation. The upper limit of the tensile force is the torque set in [%].
4) In the similar way as pressing, the positioning complete signal is output when the shaft is
stopped by tension (pressing complete). If the actuator cannot be stopped during movement
within the setting positioning width (miss-pressing), it moves by the setting distance to stop
but PEND is not turned ON.
Caution
● The speed during tension operation is set in Parameter No.34. Refer to [9.4 List of
Specifications of Connectable Actuators] for the pressing speed. The speed for pulling
operation is same as that for pressing operation.
Do not set any value larger than the value in the list. If the speed set in the position
table is equal to or less than the tension speed, the tension operation is performed at
the setup speed.
● The tension ready position should be the tension start position or forward. If not, the
moving direction varies depending on the start position to be dangerous.
The tension operation from a coordinate (coordinate value of 80 – 50 = 30mm in
example) located before the end position (30mm or less) changes to the pressing
operation from the current position to the tension end position. Note that the tension
operation after positioning to the position of 80mm does not take place.
● In case of using the force sensor, a pulling operation command from a coordinate
(30mm or less) in front of the termination point (coordinate of 80-50=30mm in example)
should not be available.
Attempting to do so should cause Alarm: 0A3 "Position Command Data Error".
80mm
80－50＝30mm
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