SM-Resolver User Guide 15
Issue Number: 4 www.controltechniques.com
5 Getting started
5.1 Installation
Resolver feedback is transmitted from a resolver as low voltage analog signals. Ensure
that electrical noise from the drive or motor does not adversely affect the resolver
feedback. Ensure that the drive and motor are connected as per the instructions given in
Chapter 4 Electrical Installation in the Unidrive SP User Guide, and that the resolver
feedback wiring and shielding recommendations are followed in section 4.4 Wiring,
Shield connections on page 13.
The control circuits are isolated from the power circuits in the drive by basic insulation
only, as specified in IEC60664-1. The installer must ensure that the external control
circuits are insulated from human contact by at least one layer of insulation rated for use
at the AC supply voltage.
If the control circuits are to be connected to other circuits classified as Safety Extra Low
Voltage (SELV) (e.g. to a personal computer) an additional isolating barrier must be
included in order to maintain the SELV classification.
WARNING
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