
5. CONNECTION TO CNC PERIPHERALS
B–63003EN/04
100
(a) The total length of the cables (J127, J128, and J143) between the
detachable LCD/MDI unit and control unit must not exceed 50 m.
(b)The cables J127, J128, and J132 also serve as the 24 VDC power
line for the detachable LCD/MDI unit. On the 24 VDC line, a
voltage drop which corresponds to the resistances of the 24 V and
0 V lines of these cables occurs. Considering this voltage drop,
determine the cable length so that 24 VDC ±10% is provided at the
CA50 connector of the unit.
(c) While the power is turned on, only the connector (shaded in the
figure above) of the connection panel can be attached or detached.
The other connectors (such as CA50 and JD41) must not be
attached and detached while the power is turned on.
CA50 (03)
CA50 (01)
CA50 (02)
CA50 (04)
CA50 (15)
CA50 (16)
CA50 (09, 10)
CA50 (19, 20)
CA50 (05)
+24V
RXD
+24V
TXD
ATCH1
*RXD
*TXD
ATCH2
0V
FG
RXD
TXD
0V
*RXD
*TXD
JD45 (03)
JD45 (01)
JD45 (02)
JD45 (04)
JD45 (11, 12)
to DI
0V DC24V
Detachable LCD/MDI unit
(Cabinet)
Shield
Cabinet
Connection panel Connector panel
Control
unit
(*1)
(*2)
+24 V external power
supply
NOTE
1 ATCH1 and ATCH2 of the detachable LCD/MDI unit are not
used.
2 To allow the detachable LCD/MDI unit to be connected or
disconnected while the power to the i Series CNC is on,
ensure that the 0 V line of the i Series CNC is first connected
to the 0 V line of the detachable LCD/MDI unit.