When connecting a resolver to the ACU, please consider the following:
Use a shielded, twisted pair cable.
Connect the cable shield either to the case of the DSub9 connector or to the ground at the
resolver housing. Never connect the shield at both ends, this will introduce a ground loop
and cause a significant degradation of the resolver's accuracy.
pin
signal
description
type
1
SHLD
Shield
2
REF
drive signal to resolver
OUT
3
COS-
resolver COS
IN
4
SIN-
resolver SIN
IN
5
COS
resolver COS
IN
6
SHLD
Shield
7
SHLD
Shield
8
REF-
drive signal to resolver
OUT
9
SIN
resolver SIN
IN
Resolver interface J6 The ACU resolver interface is designed for resolvers with an impedance
of 100 Ohms or more and transfer factor 0.5. The interface applies 4Veff / 2000Hz to the resolver
drive coil. It expects 2Veff at the sine / cosine inputs at the maximum positions.
When connecting a resolver to the ACU, please consider the following:
Use a shielded, twisted pair cable.
Connect the cable shield either to the case or pin 1,6,7 of the DSub9 connector or to the
ground at the resolver housing. Never connect the shield at both ends, this will introduce a
ground loop and cause a significant degradation of the resolver's accuracy.
(C) 2022, SatService GmbH
www.satnms.com
ACU-19V2-UM-2209 Page 12/65
