30
Configuration and adjustment variables
Modbus
address
CANopen
address
Code
Read/
Write
Name/Description/Possible values
9608
2042 / 9
tUn
R/WO
Motor control auto-tuning
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• During auto-tuning the motor operates at nominal current.
• Do not service the motor during auto-tuning.
Failure to follow these instructions will result in death or serious injury.
DANGER
UNINTENDED EQUIPMENT OPERATION
• It is imperative that all the following parameters [Rated motor volt.] (UnS), [Rated motor
freq.] (FrS), [Rated motor freq.] (nCr), [Rated motor speed] (nSP), and [Rated motor
power] (nPr) or [Motor 1 Cosinus Phi.] (COS) are correctly configured before performing
the auto-tuning.
• When one or several parameters have been modified after auto-tuning execution, tUn will
display nO and the procedure has to be performed again.
Failure to follow these instructions will result in death or serious injury.
Factory setting: 0
0 = "nO": Auto-tuning not performed.
112 = "YES": Auto-tuning is performed as soon as possible, then the parameter automatically
switches to dOnE or nO in the event that auto-tuning was uncuccessful.
tnF is displayed if tnL = YES, see page
113 = "dOnE": Use of the values given the last time auto-tuning was performed.
114 = "rUn": Auto-tuning is performed every time a run command is sent.
115 = "POn": Auto-tuning is performed on every power-up.
129 = "LI1": Logic input LI1
130 = "LI2": Logic input LI2
131 = "LI3": Logic input LI3
132 = "LI4": Logic input LI4
133 = "LI5": Logic input LI5
134 = "LI6": Logic input LI6
LI1 to LI6: Auto-tuning is performed on the transition from 0
V
1 of a logic input assigned to this
function.
Note:
tUn is forced to POn if rSC = InIt.
Auto-tuning is only performed if no 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 may last for 1 to 2 seconds. Do not interrupt; wait for the display to change to "dOnE"
or "nO".
9609
2042 / A
tUS
R
Auto-tuning status
Factory setting: 0
0 =" tAb": The default stator resistance value is used to control the motor.
1 = "PEnd": Auto-tuning has been requested but not yet performed.
2 = "PrOG": Auto-tuning in progress.
3 = "FAIL": Auto-tuning unsuccessful.
4 = "dOnE": The stator resistance measured by the auto-tuning function is used to control the
motor.
5 = "Strd": The cold state stator resistance (rSC other than nO) is used to control the motor.