PARAMETERS
93
<Setting>
Pr. 60
Setting
Operation Mode Description
Automatically Set
Parameters
0
Ordinary operation
mode
1, 2
Shortest
acceleration/
deceleration mode
Set to accelerate/decelerate the motor in the shortest time. The
inverter makes acceleration/deceleration in the shortest time using its full
capabilities. During deceleration, an insufficient brake capability may cause
the regenerative overvoltage alarm (E.OV3).
"1": Stall prevention operation level 150%
"2": Stall prevention operation level 180%
Pr. 7, Pr. 8
3
Optimum
acceleration/
deceleration mode
(Note 2, 4)
Optimum operation can be carried out by fully utilizing the inverter
capabilities in the continuous rating range.
Self-learning automatically sets the corresponding parameters so that the
average current during acceleration/deceleration is equal to the rated current.
Appropriate for applications where the load will not vary by a large amount.
Pr. 0, Pr. 7, Pr. 8
4
Energy-saving
mode (Note 3, 5)
Tunes the inverter output voltage online to minimize the inverter
output voltage during constant-speed operation.
Appropriate for energy-saving applications such as fan and pump.
Output voltage
5, 6
Elevator mode
(Note 3)
Automatically controls the inverter output voltage to deliver the
maximum torque in both the driving and regenerative modes. Appropriate
for a counterbalanced elevator.
"5": Stall prevention operation level 150%
"6": Stall prevention operation level 180%
Pr. 0, Pr. 13, Pr. 19
7
Mechanical
brake opening
completion signal
input
8
Brake sequence
mode
Mechanical
brake opening
completion
signal not input
This function causes the inverter to output the
mechanical brake operation timing signal for elevating
application.
For function details and related parameter setting, refer
to Pr. 278 to Pr. 285 (brake sequence functions).
Note: 1. When more accurate control is required for your application, set the other parameters as
appropriate.
2. Because of the learning system, this control is not valid at the first time in the optimum
acceleration/deceleration mode. Also, this mode is only valid for frequency setting of 30.01Hz or
more.
3. When the advanced magnetic flux vector control has been selected using Pr. 80 and Pr. 81, the
settings of the energy-saving mode and elevator mode are ignored. (Advanced magnetic flux
vector control has higher priority.)
4. If an overvoltage (OV3) trip has occurred during operation in the optimum
acceleration/deceleration mode (setting "3"), re-set Pr. 8 "deceleration time" to a larger value and
restart operation in this mode.
5. When the "energy-saving mode" (setting "4") is used to decelerate the motor to a stop, the
deceleration time may be longer than the preset value. Also, overvoltage is more likely to occur in
this mode as compared to the constant-torque load characteristics, therefore set the deceleration
time to a longer value.
4
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