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8 PARAMETER FUNCTIONS
8-68
Initial value
Pr. 71 "applied motor" 1
Pr. Setting Range Unit Operation
71 1
Set the motor to be used.
Initial value
Pr. 80 "motor capacity"
Pr. Setting Range Unit Operation
80
0.5, 1.0, 1.5,
2.0, 3.5
kW
Set the motor capacity.
Set the same capacity as that of the drive unit.
Note: Changing the Pr. 71 or Pr. 80 changes the motor-specific control constants used in the drive
unit. Note that after changing the value, you need to make a reset.
Initial value
Pr. 736 "overspeed adjustment factor" 100
Pr. Setting Range Unit Operation
736 0 to 100
Adjust overspeed (overshoot, undershoot).
The overspeed value depends on the load inertia, acceleration/deceleration time and load torque
(friction torque).
Using the acceleration torque (proportional to load inertia/acceleration/deceleration time) and load
torque (friction torque) to adjust the overspeed adjustment factor as outlined below allows
overspeed to be suppressed effectively.
Overspeed Adjustment
Factor
0 to 100
Load torque
Smaller
Larger
Acceleration torque
Smaller
Larger
Initial value
Pr. 737 "maximum voltage braking ending time (s)" 3
Pr. Setting Range Unit Operation
737 0.0 to 60.0 s
Set the maximum voltage braking ending time when 9999 is set in
Pr. 11 [Section 8.5.4] "voltage braking operation time".
Normally, the motor stops running within about 3s. When it is
rotated by external force, however, use this parameter to end
voltage braking forcibly.
Initial value
Pr. 738 "stop time for operation reversion (s)" 0
Pr. Setting Range Unit Operation
738 0.0 to 60.0 s
Set the stop time for switch-over from forward rotation to reverse
rotation or from reverse rotation to forward rotation. If you set 0,
there will be a stop time of at least about 100ms.