Commissioning
Instruction manual 91/121 V6.3
Then make the adjustments indicated in the following paragraphs with reference to the paragraph ”Menu structure“ from page 22 and
”Navigation in the menus“ from page 35 to enter the indicated data.
5.4.1 Setting motor parameters
The data needed to put the drive into service areas follows:
1. The motor nominal
voltage
.
2. The continuous service
current
that circulates in the motor when it is powered by the rated voltage and delivers the nominal
torque.
3. The maximum current that can withstand the motor (serves only if you want to overload the motor during accelerations).
4. The number of poles of the motor (only in the case of brushless motor).
5. The maximum speed of the motor with the maximum reference.
6. The type of speed transducer mounted on the motor and its technical data.
Sometimes it may happen that not all these data are available on the plate of the motor but that others are supplied with which you can
obtain the necessary parameters; Some formulas for obtaining missing data are given in the paragraphs related to the description of
the various motor setting menus (”Motor Parameters“ from page “36). In case of need you can contact the ALTER technical office for
clarifications.
At this point you can access the “Quick Setup → Motor Parameters → Motor Type” menu and start enter the above parameters one by
one: The data must be inserted in the order as they are in the structure of the menu because they are linked to each other and some
entered first must limit those inserted later.
The parameters of the menu group ”Optional Param“(see page 38) are not indispensable as they can be calculated automatically by
the Autotune procedure explained a little later.
5.4.2 Autotune for the synchronization of the transducer
This feature is only available for brushless motors.
This procedure must be carried out during the first
commissioning
and whenever the motor is replaced or the electrical connections
are changed, since the drive must store the synchronization and possibly the combination with the Hall sectors of the transducer
mounted on the motor.
To do this it is necessary to have first performed all the following points:
•
Entered ALL motor data indicated in the previous paragraph.
•
Since the motor will rotate without the control of the external speed reference, it is
advisable to mechanically disconnect the
motor from the mechanics or place the mechanical organ to be checked in the middle of the ride. Take into account that the
motor can do a couple of turn clockwise and counter clockwise: this must not cause damage to the machine. However,
it is
also possible to perform this function with the mechanical load
applied to the motor, provided that the load can move
with about half of the nominal torque of the motor.
•
Have saved the motor parameters on Flash memory.
Since the supply of auxiliary services should already be present, follow these steps to complete the Autotune procedure:
1. Enable the function from the “Quick Setup → Motor Parameters → Autotune Mode” menu on “ENABLED”.
2. When the DOK output switches to ON and the green LED DOK turns on, you can give the three-phase/monophase power
supply on the terminals L1, L2, L2 or D.C. power supply on the DC-BUS if this mode has been selected (see Drawing 2 on
page 12 and menu ”Power supply from“ on page 53). After the charge of the capacitors on the DC-BUS, the RDY output
switches to the ON state and the green LED RDY turns on. From this point the drive is ready to be enabled for operation.
3. When the RDY output switches to ON status, you can enable the drive with the DEN command.
4. When the drive is enabled and works regularly in Autotune mode, the green RUN LED flashes and the DOK and RDY out -
puts remain in ON status.
5. When the procedure of “Autotune” is finished the green LED RUN turns off. At that point you can remove the power rating
to the drive (DEN command = OFF) and remove the three-phase/monophase power supply (L1, L2, L3) or the D.C. power
supply on the DC-BUS. The RDY output is brought into the state of OFF and the green LED RDY turns off.
If at the end of the procedure there are no alarms on the display and the red FLT LED is off, then you can store the calculated data on
the Flash memory with the appropriate menu and mechanically reconnect the motor to the machine.
NOTE:
during operation of the motor in “Autotune” mode it is normal if it rotates clockwise and counter clockwise sometimes at
low speed.
5.4.3 Motor speed adjustment
Speed Signal from CNC
Run the following settings on the CNC:
54
Alter Elettronica s.r.l.
