16.3
Guide for electrical installation
l
Check that the servo amplifier and motor match each other. Compare the rated vol-
tage and rated current of the unit. Carry out the wiring according to the wiring dia-
gram in the instructions manual of the servo amplifier. The connections to the motor
are shown in chapter "Wiring Diagrams" from p.84.
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.
l
In case of long motor cables (>25m) and dependent on the type of the used servo
amplifier a motor choke (3YL or 3YLN) must be switched into the motor cable (see
instructions manual of the servo amplifier and accessory manual).
l
Ensure that there is proper earthing of the servo amplifier and the motor. Use correct
earthing and EMC-shielding according to the instructions manual of the servo ampli-
fier which is used. Earth the mounting plate and motor casing.
l
Cabling:
—
Route power cables as separately as possible from control cables
—
Connect up the Encoder.
—
Connect the motor cables, install motor chokes close to the servo
amplifier
—
Connect shields to shielding terminals or EMC connectors at both ends.
l
Connect up all shielding via a wide surface-area contact (low impedance) and me-
tallized connector housings or EMC-cable glands.
l
Requirements to cable material:
Capacity
Motor cable
less than 150 pF/m
Feedback cable
less than 120 pF/m
Servomotors Cartridge DDR
English - 37
Kollmorgen
04/2017
Electrical Installation
ENGLISH