4-7
4-2 Function Mode
4
Functions
•The set time here indicates the acceleration/deceleration time between 0 Hz and the maximum
frequency.
Even if a short acceleration/deceleration time is set, the actual time cannot be shorter than the
minimum acceleration/deceleration time that is determined by the mechanical inertia moment and
the motor torque. If you set a time shorter than the minimum time, an overcurrent/overvoltage trip
may occur.
Digital Operator Rotation Direction Selection
Select the direction of motor rotation applied to the RUN command via the Digital Operator.
This is disabled at terminals.
Output frequency
Max. frequency
A004/A204
Output frequency set value
Actual
acceleration
time
Actual
deceleration
time
F002/F202
F003/F203
LS
MML
S
TT
NJJ
T
9.55
Acceleration Time TS
=
(
+
)
×
×
()
–
Deceleration Time T
B
LB
MML
B
TT
NJJ
T
9.55
=
(
+
)
×
×
()
+
J
L :Inertia moment of the load converted to the motor shaft [kg·m
2
]
J
M :Inertia moment of the motor [kg·m
2
]
N
M :Motor rotation speed [r/min]
T
S :Max. acceleration torque with the Inverter driving [N·m]
T
B :Max. deceleration torque with the Inverter driving [N·m]
T
L :Required driving torque [N·m]
Parameter No. Function name Data Default setting Unit
F004
Operator rotation
direction selection
00: Forward
01: Reverse
00 ⎯
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