4. Operation
4.2 Operation in Positioner Mode
4-80
ME0342-4B
● The work is pulled also after completion of the tension. The work is drawn back or pulled
further if the work is moved. When the work is drawn back before the approach position,
alarm 0DC “pressing operation range error” occurs to stop the work. When the work is
moved in the tension direction and the load current becomes less than the current limit
value (pressing in percent), PEND is turned OFF. Naturally, the work reaches the
tension moving distance set in “Positioning width” to cause miss-pressing.
● Do not make control of changing to tension operation on the way of normal positioning
(before PEND turning ON). Depending on the position at which start signal is turned ON,
the tension operation is performed improperly. Then the PLC cannot manage the position of
the actuator.
● Pulling operation cannot be performed with the rotary actuator.
Command Torque Level Detection at Pulling
It is available to use in the same manner as for pressing.
Tension start position
80mm
Tension end position
80 – 50 = 30mm
4.2 Operation in Positioner Mode
ME0342-4B 4-81
[5] Multi-step Pressing
■ Image diagram
■ Control method
After pressing, the pressing pressure can only be changed in the pressing state.
The method of controlling multi-step pressing is the same as that described in [3] Pressing
operation.
1) Set the weak pressing (30%) in position No.2 and perform the pressing operation.
2) If pressing complete signal PEND is turned ON, start the pressing operation with pressing
pressure (50%) greater than the first pressure set in position No.3.
In this particular operation, turn ON ST3 after completion of ST2, and turn OFF ST2 when
PEND is turned OFF. In usual case, do not turn ON two or more ST* signals simultaneously.
The position data in position No.3 should be the same as that in position No.2 except the
setting in “Pressing”.
3) To add a pressing step with another pressing pressure, add a sequence consisting of a
position number and a pressing operation.
Position No.1
Position No.2
Position No.3
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