Emerson unidrive sp User Manual

Menus 15 to 17
SM-Resolver
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276 Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
The excitation level can be controlled for use with 3:1 ratio resolvers (Pr x.13 = 0), or 2:1 ratio resolvers (Pr x.13 = 1 or 2).
Resolvers with the following numbers of poles can be used with the Solutions Module.
0: 2POLE
1: 4POLE
2: 6POLE
3 to 12: 8POLE
A 2 pole resolver can be selected as drive speed feedback with a motor with any number of poles. A resolver with a number of poles greater than 2
can only be used with a motor where the number of revolver poles divides exactly into the number of motor poles i.e. a 4 pole resolver with an 8 pole
motor.
Trips can be enabled/disabled using Pr x.17 as follows:
The binary sum defines the level of error detection as below:
The wire break trip is not activated provided one signal is >1.5Vrms or both are >0.2Vrms approximately.
x.13 Resolver excitation
RW Uni US
Ú
3:1 (0), 2:1 (1 or 2)
Ö
3:1 (0)
Update rate: Background read
x.15 Resolver poles
RW Uni US
Ú
2POLE (0), 4POLE (1),
6POLE (2), 8POLE (3 to
12)
Ö
2POLE (0)
Update rate: Background read
x.17 Error detection level
RW Uni US
Ú
0 to 7
Ö
1
Update rate: Background read
Bit Function
0 Wire break detect
1 Not used
2 Not used
Bit 2 Bit 1 Bit 0 Error detection level Value in Pr x.17
0 0 0 Error detection disabled 0
0 0 1 Wire break detect 1
0 1 0 Error detection disabled 2
0 1 1 Wire break detect 3
1 0 0 Error detection disabled 4
1 0 1 Wire break detect 5
1 1 0 Error detection disabled 6
1 1 1 Wire break detect 7
NOTE

Emerson unidrive sp Specifications

General

Brand	Emerson
Model	unidrive sp
Category	Controller
Language	English