Service Guide MINI SPEED
Service Guide MINI SPEED
High Performans servo Drives
AXOR
High Performans servo Drives
AXOR
Voltage:
Primary voltage value is the avalaible voltage on the main
secondary voltage to be calculated referrd to motor max line
voltage to be used .
Use the following formula:
where V motor = E max + ( Ri x In )
Vmotor=
Emax =
Ri
=
In
=
Voltage range is reported at page 5.
However,for keep margin, axor advise rated voltage on the
secondary winding of the transormer as follows:
(For overvoltage or breaking circuit on capacitors)
CHAPTER 4 - Service controls
CHAPTER 3 - Installation
Connections examples
With a “CNC” signal
we drive the amplifier in
torque mode.
Ap/- 10 v the
amplifier provide peak
current.
Applying a resistive load:for
example a potentiometer,
we can limit the output
current .
NOTE
When current driving is used JP7 solder point must be opened
.(see page 12)
4.1 Preliminary checks
The standard amplifier is provided as follows:
Nominal and peak current agree with amplifierʼs size.
Ex. MS 10/20 = 20A Peak 10A Nominal
Tachogenerator feedback
Control the proper value of RDT resistance pin 1/14(see chapter calibrations) on the
personality header RDT resistance of 22kohm is mounted for 3000 rpm with 10V/krpm
from tacho.
3.1 Power supply dimensioning
Single phase power supply
TRANSFORMER
Vac = Vmotor
0,9 x 1,36
This is voltage between armature motor at max
speed and nominal stall torque.
CEMF at max work speed.(Similar to max
voltage of max no load motor speed)
Armature motor resistance with brushes.
Rated current at nominal torque.
44 VAC MAX NOMINAL x MS 60
90 VAC MAX NOMINAL x MS 140
145 VAC MAX NOMINALx MS 200
Axor amplifier system has several wiring connections wich must be made in order
to ensure a correct operation about input reference.
The numerations are referred on mother board and rack.
Input reference shield should be connected at ground isolated bar (see ground
connections). WARNING: Do not connected power negative (-) of source at to the
ground.