Sony DG155BPE, Instruction Manual

Page: 37 / 68

DG155BPM/DG155BPE
DG205BPM/DG205BPE
(E)
9
6-2. Output Signal
The signals output from the interpolation box are A and B phase signals in the form of a
voltage differential output complying with EIA-422. Please confirm that the minimum input
phase difference of the controller or counter connected to this probe is smaller than 200 ns
prior to use.
6-2-1. Output Signal Phase Difference
Phases A and B output from the interpolation box are generated approximately every 20
µ
s. The
phase A and B signals output from the interpolation box change depending on the speed of
movement. The minimum phase difference between phases A and B is 200 ns.
When 0.025 m/s or less (at resolution of 0.5
u
m)
When 0.025 m/s or more (at resolution of 0.5
u
m)
6-2-2. Output Signal Alarm
Phases A and B output by this probe turn to high impedance state when the response speed
has been exceeded.
10 to 20 ms
Phases A and B turn to high impedance state
200 ns
During maximum response
speed of 1 m/s
At 0.025 to 1 m/s
Approx. 20
u
s Approx. 20
u
s
Integer multiple
of 200 ns
Integer multiple of 0.5 u s
Phase A
Phase B