Infranor CD1-a, Руководство пользователя, Страница: 44 / 45

44
CD1-a
Chapter 8 – Appendix
8 - USE OF THE "ENABLE" INPUT
The
Enable input ensures the amplifier enabling/disabling as shown on the timing diagram below:
+24V
Enable input
pin 20 of X2
t
t
Enable/Disable
Enable
Disable
60 ms
9 - INCREMENTAL ENCODER OUTPUTS
Two A and B channels in quadrature with one Z marker pulse per revolution allow to close the position loop via the
NC.
The duration of the « marker pulse per revolution » used for the homing is sized like follows :
A (or B) signal period
« Z marker pulse » duration = ________________________
2 DR+2
with DR = division ratio (DR = 0 for 1024 ppr
DR = 1 for 512 ppr
DR = 2 for 256 ppr
DR = 3 for 128 ppr)
A
B
A
B
CW rotation
(motor shaft front view)
CCW rotation
(motor shaft front view)
t
t
t
t