BECKHOFF AM2000 - Manual (Page 15)

II Installation / Commissioning
II.1 Important notes
l Check that the servoamplifier and motor match each other. Compare the rated volt-
age and rated current of the unit. Carry out the wiring according to the wiring
diagram in the Installation and Commissioning Instructions for the servoamplifier.
The connections to the motor are shown on page 23 Notes on the connection
methods can be found on page 18.
l Ensure that there is proper earthing of the servoamplifier 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 electromag-
netic 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 servoamplifier).
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 servoamplifier of the series AX2000 is used and the motor cable exceeds
25m, a boxed choke (type 3YL-20, manufactured by BECKHOFF) and motor
leads with the following diameters must be used:
Servoamplifier choke box Max. cable diameter
AX2001...06 3YL-20 4 x 1mm²
AX2010 3YL-20 4 x 1,5mm²
AX2020 3YL-20 4 x 2,5 mm²
l Connect up all shielding via a wide surface-area contact (low impedance) and
metallized connector housings or EMC-PG 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 .
l Ensure that there is adequate heat transfer in the surroundings and the motor
flange, so that the maximum permissible flange temperature is not exceeded in S1
operation.
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 300 seconds 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.
Motor series AM227..297 15
BECKHOFF
12/2001
Installation / Commissioning