Table of Contents - TG Drives

EXTENDED REGISTER GROUPS
RD1CORR, POSITION CORRECTOR
Group Group
No.
RD1Corr
RD1Corr.
RD1.Mode
18
.
RD1.Mode,13
Reg.SetTorq , 500
.
clr Tmr.T0
wait Tmr.T0 > 20000
.
RD1.Mode,5
.
RD1Corr, Position corrector
Description
Position correction values for RD1. This table can be
used to increase the accuracy of RD1. This is useful
if RD1 is a low accuracy type, such as a HALL
sensor, etc. Turning ON bit 2 of RD1.Mode enables
use of this table.
; Assume R19 is 1 for forward and 0 for reverse direction.
10 IF RD1Corr.34 = R19 then 12 ; Check if right direction.
11 RD1Corr.34 = R19 ; Nope, swap table
12 ...
GENERAL
To swap to alternate table, use the following:
The DMC 2 is intended for use with resolvers as feedback devices. If other devices
are to be used, or the resolver is of low quality, it may be necessary to correct the
values from the feedback device before the angle is calculated.
The RD1Corr group is a table of such correction values.
FUNCTION
The correction table does not operate in high-resolution mode.
Version 4.x
RELATED ITEMS
EXAMPLE USAGE
The DMC 2 can measure and create the values in the
correction table using a special mode of the RD1.Interface.The
motor must run with high and constant speed for several
seconds to be able to find the values.
Bit 3 in RD1.Mode activates the measurement procedure and
bit 2 activates the correction.
Resolver 1 mode register.
;1+4+8 use and create the correction table
;run with torque control
;run a while
;1+4 use the correction table
User's Manual 5.1 Inmotion Technologies AB
Doc. No.9032 0027 01 (B), Rev. 11.07.2001
133