Control Techniques UNIDRIVE SP1201 Guía Rápida página 16

Safety Product Mechanical
Information Information Installation
the encoder operation from electrical noise.
Use the grounding bracket and grounding clamp supplied with the drive to terminate the
screens at the drive.
Motor cable: use a motor cable with an overall shield. Connect the shield of the motor
cable to the ground terminal of the motor frame using a link that is as short as possible
and not exceeding 50mm (2in) long. A full 360° termination of the shield to the terminal
housing of the motor is beneficial.
Encoder cable: for best screening use cable with an overall shield and individual
shields on twisted pairs, connect the cable as illustrated in Figure 4-2. Clamp the overall
shield to grounded metallic surfaces at both the encoder and the drive.
Brake resistor cable: the optional braking resistor should also be wired with shielded
cable. If unshielded wire is required refer to Unidrive SP User Guide for guidance.
Control cables: if the control wiring is to leave the enclosure, it must be shielded and
the shield(s) clamped to the drive using the grounding bracket. Remove the outer
insulating cover of the cable to ensure the shield(s) make contact with the bracket, but
keep the shield(s) intact until as close as possible to the terminals.
Figure 4-2 Feedback cable screen connections
Shield
connection
to 0V
Connection
at drive
16
Electrical Getting
Installation Started
Twisted
pair
shield
Cable
Cable
Ground clamp
shield
on shield
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Running Advanced
Menu 0
the motor parameters
Twisted
pair
shield
Cable
shield
Unidrive SP Short Form Guide
UL Listing
Diagnostics Appendix
Information
Shield
connection
to 0V
Connection
at motor
Issue Number: 2