Guide For Electrical Installation - Beckhoff AM3000 Technical Description, Installation, Setup

BECKHOFF
8.2

Guide for electrical installation

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Servomotors AM3000
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 product
manual of the servo amplifier. The connections to the motor are shown on pages 19f. Notes
on the connection methods can be found on page 18.
Ensure that there is proper earthing of the servo amplifier and the motor. Use correct eart-
hing and EMC-shielding according to the product manual of the servo amplifier which is
used. Earth the mounting plate and motor casing. For connection methods see chapter 8.3.
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 product
manual of the servo amplifier).
Cabling:
— Route power cables as separately as possible from control cables
— Connect up the resolver or encoder.
— Connect the motor cables, install motor chokes close to the servo amplifier
— Connect shields to shielding terminals or EMC connectors at both ends
— Connect the holding brake, if used
— Connect shielding at both ends.
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.
If a servo amplifier of the series AX2000 is used and the motor cable exceeds 25m, a
motor choke (3YL) must be used.
Connect up all shielding via a wide surface-area contact (low impedance) and metallized
connector housings or EMC-cable glands.
06/2008
Electrical Installation
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