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2 guide to electrical installation, Installation, Electrical installation – BECKHOFF AX2500 User Manual

Page 38: Guide to electrical installation

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8.2

Guide to electrical installation

The following notes should assist you to carry out the electrical installation in a sensible
sequence, without overlooking anything important:

Cable selection

Select cables according to EN 60204-1,

ð p.20

Grounding,

Shielding

EMC-conform shielding and grounding (

ð p.45) Earth the moun-

ting plate, motor housing and CNC-GND of the controls. Notes
on connection techniques are on page 40

Wiring

Route power leads separately from control cables
Wire the BTB/RTO contact in series into the safety loop
— Connect the digital control inputs to the servo amplifier
— Connect up AGND
— Connect the analog setpoint, if required
— Connect the feedback unit (resolver or encoder)
— If required, connect the encoder emulation
— If required, connect the fieldbus
— Connect the motor cable

Connect shielding to EMC connectors at the motor end, and
the shielding lug at the amplifier end

— Connect motor-holding brake, with shielding to EMC

connector at the motor end, and to shielding lug at the
amplifier end

— If required, connect the external regen resistor (with fusing)
— Connect the auxiliary supply

(maximum permissible voltages

ð p.20)

— Connect main power supply

(maximum permissible voltages

ð p.20)

— Connect PC (

ð p.67).

Check

Make a final check of the wiring carried out against the wiring
diagrams that have been used

38

AX2500 Product Manual

Electrical Installation

06/2007

BECKHOFF