Omron 3G3RX - Operator Rotation Direction Selection

4-9
4-2 Function Mode
4
Functions
•The set time here indicates the acceleration/deceleration time from 0 Hz to the maximum
frequency.
•When the LAD cancel (LAC) function is selected in the multi-function input selection and the signal
is turned on, the acceleration/deceleration time is ignored, and the output frequency
instantaneously follows the reference frequency.
•To switch between the 1st/2nd/3rd acceleration times or between the 1st/2nd/3rd deceleration
times, allocate 08 (SET)/17 (SET3) to the desired multi-function input (refer to "Multi-function Input
Selection" (page 4-79)), and use the SET/SET3.
•You can set the acceleration/deceleration time via (1) the Digital Operator, (2) optional board 1, or
(3) optional board 2.
•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.
For short-time deceleration, use a braking unit (optional).
Operator Rotation Direction Selection
•Select the rotation direction applied to the RUN command via the Digital Operator.
•This is disabled at terminals.
Parameter No. Function name Data Default setting Unit
F004
Operator rotation direction
selection
00: FWD (Forward)
01: REV (Reverse)
00 
Output frequency
Max. frequency
A004/A204/A304
Output frequency set value
Actual
acceleration
time
Actual
deceleration
time
F002/F202/F302
F003/F203/F303
LS
MML
S
TT
NJJ
T
9.55
Acceleration Time T S
=
(
+
)
()
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]