Delta Tau GEO BRICK LV 用户手册
Geo Brick LV User Manual
PinOuts and Software Setup
106
Technique 2 Example
Channel 1 is driving a 37-bit (25-bit Singleturn, 12-bit Multiturn) rotary serial encoder, or a linear scale
with similar protocol resolution (25 bits, 10 nanometer).
with similar protocol resolution (25 bits, 10 nanometer).
Encoder Conversion Table
– for Position (Technique 2)
Conversion Type: Parallel pos from Y word with no filtering
Width in Bits: Singleturn/absolute resolution in bits (e.g. 25 bits)
Offset Location of LSB: leave at zero
No shifting
Source Address: serial data register A (see table below)
Remember to click on Download Entry for the changes to take effect.
Source Address (serial data register A)
Channel 1
Y:$78B20
Channel 5
Y:$78B30
Channel 2
Y:$78B24
Channel 6
Y:$78B34
Channel 3
Y:$78B28
Channel 7
Y:$78B38
Channel 4
Y:$78B2C
Channel 8
Y:$78B3C
This is a 2-line ECT entry, its equivalent script code:
I8000=$2F8B20
; Unfiltered parallel pos of location Y:$78B20
I8001=$19000
; Width and Offset. Processed result at $3502
Typically, the position and velocity pointers are set to the processed data address (e.g. $3502). Also, with
technique 2, it is recommended to set the position and velocity scale factors to 1 and the position error
limit to its maximum value:
I100=1
; Mtr#1 Active. Remember to activate the channel to see feedback
I103=$3502
; Mtr#1 position loop feedback address
I104=$3502
; Mtr#1 velocity loop feedback address
I108=1
; Mtr#1 position-loop scale factor
I109=1
; Mtr#1 velocity-loop scale factor
I167=8388607
; Mtr#1 Position Error Limit