TMC 188/40 Motion Control Module
Appendix C: QSBX/40 Module
Delta Computer Systems, Inc. 360/254-8688
95
Quadrature Encoder Interface Examples
TTL
TTL
ENCODER
5V
QSBX/40
1N4935
1N6402
1N4935
+
-
+
-
+
+
-
-
Use diodes if voltage
may 40, -5
Op tional - Imp roves
noise immunity
P. S.
Open Collector
ENCODER
5-24V
QSBX/40
1N4935
1N6402
1N4935
+
-
+
-
+
+
-
-
Use diodes if voltage
may 40, -5
Recommended
Improves noise immunity
PS Voltage
Resistance
5V
12V
15V
24V
P. S.
Differential Line Driver
ENCODER
5V
QSBX/40
1N4935
1N6402
+
-
+
-
Use diodes if voltage
may 40, -5
88C30 or equiv.
Resistors recommended if the PS is between 4.75 and 5.0 V or the line resistance
is more than 5.5 ohms. If PS = 5.25, the line res. can be 22 ohms without resistors.
NOTE : Practical line lengths may be limited by noise. In demanding environments
differential receivers should be used.
Line Res.
28AWG
24AWG
75 ft
100 ft
300 ft
175 ft
250 ft
700 ft
5.5 Ohm
7.5 Ohm
22 Ohm
P. S.