Table of Contents - TG Drives

EXTENDED REGISTER GROUPS
RD1.FiltSpeed 5
RD1, Resolver/Digital converter #1.
perform accurately up to 30000 rpm for a 2-pole (single speed)
resolver. If the RD1.Ampl maximum exceeds 16000 and the
corresponding resolver is to be used at low speeds only
(maximum of 500-1000 rpm for a 2-pole resolver), this value
may be detuned to decrease RD1.Ampl below 16000.
Not implemented
RD1.RPos 6 -2 31 ..2 31 -1 R
Relative position counter. Rd1.Rpos = Rd1.pos – Rd1-PosOffs
RD1.SinOffs 7 -16384..16383 RW
In High-speed mode, these values are the RD-electronics offset
calibration values. The offset values are subtracted from the
A/D input values to give SysIo.RD1Sin and SysIo.RD1Cos.
RD1.CosOffs 8 -16384..16383 RW
In High-speed mode, these values are the RD-electronics offset
calibration values. The offset values are subtracted from the
A/D input values to give SysIo.RD1Sin and SysIo.RD1Cos.
RD1.AmplAdj 9 -1..1 R
!! This is done more efficiently by using automatic correction!!
The result from the resolver monitoring performed with the rate
set by SYSIO.ChkTMR.
If RD1.Ampl < 15500 then
RD1.AmplAdj = -1
If RD1.Ampl > 16000 then
RD1.AmplAdj = 1
If RD2.Ampl < 8000 then
RD1.AmplAdj = 0
If the resolver interrupt is enabled, the RD1.AmplAdj can be
used to modify the SysIo.PWM0 in order to keep the
RD1.Ampl within the range 15500 to 16000 by just adding the
value to SysIo.PWM0.
RD1.SinGain 10 -4096 .. +4096
Sine/cosine gain compensation. To be used in high-resolution
mode.
This is aprox. +-12.5 % adjustment.
-4096 -12.5 % less
0 unity (100%)
4096 12.5 % larger
This member is used to compensate gain errors between the
sine and the cosine amplifier. The value can be found by
rotating the motor while searching the SysIo.RD1Sin maximum
and SysIo.RD1Cos maximum (preferably in a PL program),
then calculate as;
⎛ sin max* 32768 ⎞
RD
1. SinGain = 32768 − ⎜
⎟
⎝ cos max ⎠
User's Manual 5.1 Inmotion Technologies AB
Doc. No.9032 0027 01 (B), Rev. 11.07.2001
61