6
(E)
MJ620
Minimum phase difference: Tw: 100 ns (When set to a minimum phase difference of 100 ns)
Tw TwTw Tw
Tw
+
N
x
100 ns
400 ms
A
B
1/4 Z
Z
AL
N: Fluctuation due to travel speed
Travel
direction
reversal
High impedance
Resolution settings
3-3. Number of divisions and output phase difference
The MJ620 output A/B phase signals, an alarm signal, and reference point signals as shown
in Fig. 3-1.
Fig. 3-1
.
The encoder travel is detected in 100-ns increments and is output at a phase difference
proportionate to the amount traveled.
The phase difference changes in integral multiples of 100 ns.
.
The A/B phase signals are at high impedance during output of the alarm signal.
