Mitsubishi Electric FR-A720-0.4K Instruction Manual page 193

Setting of acceleration/deceleration time
and acceleration/deceleration pattern
(3) Adjustment of shortest and optimum acceleration/deceleration mode (Pr. 61 to Pr. 63)
⋅ By setting the adjustment parameters Pr. 61 to Pr. 63, the application range can be made wider.
Parameter
Name
Number
Reference
61
current
Reference value
62
at acceleration
Reference value
63
at deceleration
REMARKS
⋅ Pr. 61 to Pr. 63 are invalid when Real sensorless vector control or vector control is selected in the shortest acceleration/
deceleration mode.
⋅ Since the Pr. 61 to Pr. 63 settings automatically return to the initial value (9999) if the Pr. 292 setting is changed, set Pr. 292 first
when you need to set Pr. 61 to Pr. 63.
♦ Parameters referred to ♦
Pr. 0 Torque boost Refer to page 146
Pr. 7 Acceleration time, Pr. 8 Deceleration time
Pr. 22 Stall prevention operation level
Pr. 22 Torque limit level Refer to page 100
182
Setting Range
For example, when the motor and inverter are different in capacity,
55K or
0 to 500A
set the rated motor current value.
lower
Shortest acceleration/deceleration: Set reference current (A) of the
stall prevention operation level during acceleration/deceleration
75K or
Optimum acceleration/deceleration: Set reference current (A) of the
0 to 3600A
higher
optimum current during acceleration/deceleration
9999 (initial value) The rated inverter current is defined as reference.
Set when it is desired to change the reference level of acceleration
and deceleration.
Shortest acceleration/deceleration: Set the stall prevention
operation level (ratio to the current value of Pr. 61 ) during
0 to 220%
acceleration/deceleration.
Optimum acceleration/deceleration: Set the optimum current level
(ratio to the current value of Pr. 61 ) during acceleration/
deceleration.
Shortest acceleration/deceleration: The 150% value during shortest
acceleration/deceleration is judged as the stall prevention operation
9999
(initial value)
level.
Optimum acceleration/deceleration: 100% is the optimum value
Refer to page 172
Refer to page 152
Description