Omron MX2 - Second Acceleration and Deceleration Functions

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"A" Group: Standard Functions Section 3-5
3-5-12 Second Acceleration and Deceleration Functions
The MX2 inverter features two-stage acceleration and deceleration ramps.
This gives flexibility in the profile shape. You can specify the frequency transi-
tion point, the point at which the standard acceleration (
F002) or deceleration
(
F003) changes to the second acceleration (a092) or deceleration (a093). Or
you can use intelligent input [2CH] to trigger this transition. These profile
options are also available for the second motor settings. Select a transition
method via
a094 as depicted below. Be careful not to confuse the second
acceleration/deceleration settings with settings for the second motor!
Note For
A095 and A096 (and for 2nd motor settings), if you set a very rapid Acc1 or
Dec1 time (less than 1.0 second), the inverter may not be able to change
rates to Acc2 or Dec2 before reaching the target frequency. In that case, the
inverter decreases the rate of Acc1 or Dec1 in order to achieve the second
ramp to the target frequency.
"A" Function Run
Mode
Edit
Defaults
Func.
Code
Name Description EU Units
A092 Acceleration time (2) 2
nd
segment of acceleration,
range is:
0.01 to 3600 sec.
9 10.00 sec
A292 Acceleration time (2),
2
nd
motor
9 10.00 sec
A093 Deceleration time (2) 2
nd
segment of deceleration,
range is:
0.01 to 3600 sec.
9 10.00 sec
A293 Deceleration time (2),
2
nd
motor
9 10.00 sec
A094 Select method to switch to
Acc2/Dec2 profile
Three options for switching from
1st to 2nd accel/decel:
00... 2CH input from terminal
01... Transition frequency
02... Forward and reverse
8 00 –
A294 Select method to switch to
Acc2/Dec2 profile, 2nd motor
8 00 –
A095 Acc1 to Acc2 frequency transi-
tion point
Output frequency at which Accel1
switches to Accel2, range is 0.0 to
400.0 Hz
*1
8 0.0 Hz
A295 Acc1 to Acc2 frequency transi-
tion point, 2nd motor
8 0.0 Hz
A096 Dec1 to Dec2 frequency transi-
tion point
Output frequency at which Decel1
switches to Decel2, range is 0.0 to
400.0 Hz
*2
8 0.0 Hz
A296 Dec1 to Dec2 frequency transi-
tion point, 2nd motor
8 0.0 Hz
*1
Up to 1000Hz for High frequency mode (d060 set to "2")
*2
Up to 1000Hz for High frequency mode (d060 set to "2")
A095
= 00
Transition via 2CH input
Accel 1
t
0
A094
= 00
Output
frequency
0
1
2CH
input
Output
frequency
Accel 1
Accel 2
Accel 2
Transition via freq. level
A094
= 01
Frequency
Transition
points
t
A096
decel 2
decel 1