Installation manual

Configuration Mode (ConF)
100 S1A28692 03/2010
Parameters described in this page can be accessed by:
tUn [Auto tuning]
[No] (nO)
T
DANGER
HAZARD OF ELECTRIC SHOCK OR ARC FLASH
• During auto-tuning, the motor operates at rated current.
• Do not service the motor during auto-tuning.
Failure to follow these instructions will result in death or serious injury.
WARNING
LOSS OF CONTROL
• It is essential that the following parameters [Nominal I sync.] (nCrS), [Nom motor spdsync] (nSPS),
[Pole pairs] (PPnS), [Syn. EMF constant] (PHS), [Autotune L d-axis] (LdS) and [Autotune L q-axis]
(LqS) are correctly configured before starting auto-tuning.
• When one or more of these parameters have been changed after auto-tuning has been performed,
[Auto tuning] (tUn) will return [No action] (nO) and the procedure will have to be repeated.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
nO
YES
CLr
- Auto-tuning is only performed if no stop command has been activated. If a "freewheel stop" or "fast stop" function has been
assigned to a logic input, this input must be set to 1 (active at 0).
- Auto-tuning takes priority over any run or prefluxing commands, which will be taken into account after the auto-tuning
sequence.
- If auto-tuning detects a fault, the drive displays [No action] (nO) and, depending on the configuration of
[Autotune fault mgt] (tnL) page 249
, may switch to [Auto-tuning] (tnF) fault mode.
- Auto-tuning may last for 1 to 2 seconds. Do not interrupt the process. Wait for the display to change to [No action] (nO).
Note: Motor thermal state has a big influence on tune result. Make the tune with the motor stopped and cold.
To redo a tune of the motor, wait that it is completely stopped and cold. Set first [Auto tuning] (tUn) to [Erase tune] (CLr),
then redo the motor tuning.
The use of the motor tuning without doing a [Erase tune] (CLr) first is used to get the thermal state estimation of the motor.
In any case, the motor has to be stopped before performing a tune operation.
Cable length has an influence on the Tune result. If the cabling is modified, it is necessary to redo the tune operation.
[No action] (nO): Auto-tuning not in progress
[Do tune] (YES): Auto-tuning is performed immediatly if possible, then the parameter automatically changes
to [No action] (nO). If the drive state does not allow the tune operation immediately, the parameter changes to [No] (nO) and
the operation must be done again.
[Erase tune] (CLr): The motor parameters measured by the auto-tuning function are reseted. The default motor parameters
values are used to control the motor. [Auto tuning status] (tUS) is set to [Not done] (tAb).
tUS [Auto tuning state]
[Not done] (tAb)
tAb
PEnd
PrOG
FAIL
dOnE
(for information only, cannot be modified)
This parameter is not saved at drive power off. It shows the Autotuning status since last power on.
[Not done] (tAb): Autotune is not done
[Pending] (PEnd): Autotune has been requested but not yet performed
[In Progress] (PrOG): Autotune is in progress
[Failed] (FAIL): Autotune has detected a fault
[Done] (dOnE): The motor parameters measured by the auto-tuning function are used to control the motor
StUn [Tune selection]
[Default] (tAb)
tAb
MEAS
CUS
(for information only, cannot be modified)
Note: Tune of the motor will increase significantly the performances.
[Default] (tAb): The default values are used to control the motor
[Measure] (MEAS): The values measured by the auto-tuning function are used to control the motor
[Custom] (CUS): The values set manually are used to control the motor
Code Name / Description Adjustment range Factory setting
2 s
DRI- > CONF > FULL > DRC- > SYN-
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: [phone]-Outside Local Area: [phone]-www.stevenengineering.com