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Installation and user guide
Rev: 4.0
NTT 240/460
Operation mode
6.07 Motor autophasing
Autophasing function allows drive to identify connected motor poles number and incremental encoder offset (all
data are visible in ‘Motor Data’ item); ensure to perform autophasing procedure if a third parts motor is used, in order
to grant a correct drive functionality.
If drive manages motor brake, its disengage is performed during autophasing function. In case of vertical
axis load, please use an oppropriate external mechanic brake esterno and separate rotor from load. In
the end of autophasing operation, motor brake will engage.
!
Rotor MUST be free to rotate during autophasing function.
Please set correct used motor encoder pulse number and motor rated current before performing
autophasing.
Drive can perform autophasing also without HALL sensors in order to identify only connected motor poles number.
In the launching window, dove a motor current confirmation message appears and lets to enter correct data; also a
free rotor message appears, as shown in the image below:
!
NOTES:
•
Modifing current data and encoder pulse number before performing autophasing, it lets to auto update
related into
Motor Data
item, as shown in previous image.
•
H.D.T. motors are normally phased at drive default value, so, during first start up, it is not necessary to
perform autophasing.
Caliper software shows some information during autophasing operation, as shown in the image below:
During this operation, motor performs one complete turn at low
speed, identifing total motor poles number; the graphic window
shows istantaneous information about rotor position within turn.
Press Start to perform autophasing.
Autophasing can be stopped in any tyme pressing Stop key. An au-
tophasing operation must have been complete at least, in order to
ensure a drive correct operation with connected motor.
If during autophasing motor runs in counterclockwise, (shaft side
view), please invert two motor phases of cable connection.
In the end, Caliper software will update motor poles number into ‘Mo-
tor Data’ item and will automatically send data to drive.
Summary of Contents for NTT 240
Page 129: ......
