2 guide to electrical installation, Installation, Electrical installation – BECKHOFF AX2500 User Manual
Page 38: Guide to electrical installation

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