Installation manual

Quick Menu
56 S1A53838 09/2011
Quick menu
The AUF submenu provides ready access to the ten basic parameters commonly used in programming the
drive.
In many cases, programming the ATV212 drive is complete when these 10 parameters and motor parameters
have been properly set. .
Code Name / Description Adjustment range Factory setting
AU1 [Auto ramp]
Automatic ramp adaptation - 1
0
1
2
[Disabled]
[Enable]: [Acceleration time 1] (ACC) and [Deceleration time 1] (dEC)
[ACC only]: [Acceleration time 1] (ACC) only
If parameter AU1 is set to 1 or 2, the drive will monitor its own loading level and optimize the acceleration and deceleration
ramps. The acceleration and deceleration AU1 = 1 only rates will be automatically adjusted between 1/8 to 8 times the settings
of ACC and dEC, depending on the drive’s current rating and the load level on the motor. ACC and dEC should be appro-
priately set for an average load in the application. If the load on the motor increases rapidly during ramp up or ramp down, the
auto ramp adaptation feature may not help to prevent the drive from experiencing an overcurrent or overvoltage.
If the application requires a consistent acceleration and deceleration time, set AU1 to 0, and set ACC and dEC manually as
needed. The manual acceleration and deceleration times can still be overridden by the [Motor Current Limit] (F601) (see page
69
) and [Overvoltage fault] (F305) (see page 128) and [Overvoltage level] (F626) (see page 128) functions.
ACC
[Acceleration time 1]
0.0 to 3200 s According to drive
rating (1)
The setting of parameter ACC determines the slope of the acceleration ramp and the time it takes for the output frequency of the
drive to increase from 0 Hz to the setting of [Max frequency] (FH) (see page 82
).
If parameter [Auto ramp] (AU1) is set to 1 or 2, the acceleration ramp may be increased or decreased from the setting of ACC,
depending on the amount of load on the motor during ramp up.
If two different acceleration rates are needed, see parameter [Acceleration time 2]
(F500) on page 83.
dEC [Deceleration time 1]
0.0 to 3200 s According to drive
rating (1)
The setting of parameter dEC determines the slope of the deceleration ramp and the time it takes for the output frequency of
the drive to decrease from the setting of [Max frequency] (FH) to 0 Hz.
If parameter [Auto ramp] (AU1) is set to 1 or 2, the deceleration ramp may be increased or decreased from the setting of dEC,
depending on the amount of load on the motor during ramp down. See diagram above.
If two different deceleration rates are needed, see parameter [Deceleration time 2]
(F501) on page 83.
LL [Low limit frequency]
0.0 to [Upper limit
freq] (UL) Hz
0.0 Hz
Parameter LL sets the minimum frequency that can be commanded to the drive by the local or remote speed reference source.
UL [Upper limit freq]
0.5 to [Max fre-
quency] (FH) Hz
50.0 Hz
Parameter UL sets the maximum frequency that can be commanded to the drive by the local or remote speed reference source.
The top end of its range is limited by the setting of [Max frequency] (FH).
(1) See table page 167
0
Output frequency (Hz)
Time (s)