
B–63833EN/03
5. CONNECTION TO CNC PERIPHERALS
78
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.
Usually, for the Series 0i–B, the manual handle (manual pulse generator)
is connected to the main body of the control unit. For the Series 0i
Mate–B, the manual handle is connected to the operator’s panel
(including operator’s panel I/O) equipped with a manual pulse interface
connected with an I/O LINK.
By using the manual handle allocation function, it is possible to add an
operator’s panel (including operator’s panel I/O) similar to the one
mentioned above to the above configuration, add additional manual
handle interfaces, and set the manual handle interface to be used freely
with an appropriate parameter.
Usually, if two or more units equipped with a manual handle interface are
connected with an I/O LINK, the manual handle interface of the first unit
connected to the I/O LINK will be automatically enabled.
The manual handle interface of the Series 0i–B is in built–in I/O, and this
built–in I/O is the first unit on the I/O LINK. Usually, therefore, the
manual handle interface of the built–in I/O will be enabled.
The use of this function enables the manual handle interfaces of the
second and subsequent units. By setting bit 1 of parameter No. 7105, the
manual handles associated with the X addresses set in parameters Nos.
12305 to 12307 can be allocated as the first, second, and third manual
handles, respectively.
Up to three manual handles can be allocated. For the Series 0i Mate–TB,
however, up to two manual handles can be allocated.
5.4.3
Cable Length When
Manual Pulse
Generator is Used
5.4.4
Manual Handle
Allocation Function