
B–63503EN/02
5. CONNECTION TO CNC PERIPHERALS
71
Manual pulse generators are supplied with 5 VDC power the same as
pulse coders. The drop in voltage due to cable resistance must not exceed
0.2V (on 0V and 5V lines in total).
0.2y
0.1 R 2L
m
where0.1 :Power supply current for the
manual pulse generator = 0.1 A
R : Wire resistance per unit length [Ω/m]
m: Number of 0–V wires
(= number of 5–V wires)
L : Cable length [m]
Therefore,
m
R
Lx
Example: When cable A66L–0001–0286 is used
This cable consists of three pairs of signal lines and six power wires
(20/0.18, 0.0394
Ω/m).
When these three cables are used for 0V and 5V lines, the cable length is:
3
0.0394
Lx
=76.75[m]
The maximum distance is, however, 50 m for the transmission of a pulse
signal from the manual pulse generator. The cable length is, therefore, up
to 50 m.
The maximum cable length is 38.37 m when using the two manual pulse
generators, or 25.58 m when using the three generators.
5.4.3
Cable Length When
Only One Manual Pulse
Generator is Used