YASKAWA DX100 Instructions Manual page 270

DX100
Robot I/O unit (JZNC-YIU01-E)
CN303
-1 (EX24VIN)
-2 (EX024VIN)
+24V
-3 (+24V)
-4 (024V)
024V
In case of using internal power supply
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13 Description of Units and Circuit Boards
13.6 Robot I/O Unit (JZNC-YIU01-E)
Connection of External Power Supply for I/O
At factory setting, the internal power supply for I/O is used. If the external
power supply for I/O is used, connect it with following procedure.
1. Remove the wire connected between CN303-1 to -3 and CN303-2 to -4
of the robot I/O unit.
2. Connect +24V of the external power supply to CN303-1 and 0V to
CN303-2 of the robot I/O unit.
For the connection of the CN303 connector, refer to chapter 13.8 "WAGO
Connector" at page 13-21.
Fig. 13-10: Connection of External Power Supply for I/O
+24VU
External
F1 Power Supply
3.15A
+24V
F2
3.15A
(Ready by Customer)
024VU
• The internal power supply of 24V of about 1.5A of
DX100 can be used for I/O.
Use external 24V power supply for higher currents and
to isolate the circuit inside and outside the DX100.
• Power supply circuit for I/O (+24 VU, 024 VU) has 3.15A
fuses (F1, F2).
NOTE
• Install the external power supply outside the DX100 to
avoid electric noise problems.
• If the internal power supply is selected and the external
power supply is connected to CN303-1 to -3 and
CN303-2 to -4, do not connect the line of the external
power supply to the +24VU and 0VU terminals. The unit
may malfunction if the external power supply is also
connected.
13-17
Robot I/O unit (JZNC-YIU01-E)
CN303
-1 (EX24VIN)
-2 (EX024VIN)
0V
+24V
-3 (+24V)
-4 (024V)
024V
In case of using external power supply
+24VU
F1
3.15A
F2
3.15A
024VU