2
Installation / Setup
2.1
Important notes
l
Check that the servo amplifier and motor match each other. Compare the rated voltage and
rated current of the unit. Carry out the wiring according to the wiring diagram in the Installati-
on and Setup Instructions for the servo amplifier. The connections to the motor are shown
on pages 17f. Notes on the connection methods can be found on page 16.
l
Ensure that there is proper earthing of the servo amplifier and the motor.
l
Route the power and control cables as separately as possible from one another (separation
> 20 cm). This will improve the immunity of the system to electromagnetic interference.
If a motor power cable is used which includes integral brake control leads, then these brake
control leads must be shielded. The shielding must be connected at both ends (see under
Installation Instructions for the servo amplifier).
l
Install all cables carrying a heavy current with an adequate cross-section, as per EN 60204.
The recommended cross-section can be found in the Technical data.
Caution!
If a servo amplifier of the series SERVOSTAR is used and the motor cable exceeds
25m, a motor choke (type 3YLNxx, see manual of the servo amplifier) and motor leads
with the following diameters must be used:
Rated output current of the servo amplifier
Maximum lead diameter of the motor cable
(cable length > 25m and motor choke)
1...6 A
4 x 1mm²
10...20 A
4 x 2,5mm²
l
Connect up all shielding via a wide surface-area contact (low impedance) and metallized
connector housings or EMC-cable glands.
l
Check the compliance to the permitted radial and axial forces F
R
and F
A
.
When you use a toothed belt drive, the
minimal
permitted diameter of the pinion e.g. follows
from the equation:
d
M
F
R
min
³
´
0
2.
Caution!
Never undo the electrical connections to the motor while it is energised. A dangerous
voltage, resulting from residual charge, can be still present on the capacitors up to 5
minutes after switch-off of the mains supply.
Measure the DC-link voltage and wait until it has fallen below 40V.
Even when the motor is not rotating, control and power leads may be live.
Servomotors AKM
13
Kollmorgen
05/2006
Installation / Setup
