YASKAWA DX200 User Manual page 83

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Connection of the external power supply for I/O
In the factory setting, the internal power supply for I/O is used. If the external power supply
for I/O is used, connect it as described below.
1. Remove the wire connected between CN303-1 to -3 and CN303-2 to -4 of the universal
I/O circuit board.
2. Connect +24V of the external power supply to CN303-1 and 0V to CN303-2 of the robot
I/O unit.
Universal I/O circuit board
1
External supply
2
Provided by the customer
3
In case of using external power supply.
4
In case of using internal power supply (factory set-
5
tings).
NOTICE
 The internal power supply of 24V of about 1.5 A of robot control can be used for I/O.
Use external 24V power supply for higher currents and to isolate the circuit inside and
outside the robot control.
 Power supply circuit for I/O (+24 VU, 024 VU) has 3.15A fuses (F1, F2).
 Install the external power supply outside the DX200 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 external power supply line to the
+24VU and 0VU terminals. The unit may malfunction if the external power supply is also
connected.
Description of Units and Circuit Boards
(JANCD-YIO21-E)
CN303
1(EX+24VIN)
2(EX024VIN)
3(+24V)
4(024V)
(JANCD-YIO21-E)
2 CN303
+24V 1(EX+24VIN)
0V 2(EX024VIN)
3
3(+24V)
4(024V)
1
+24VU
F1
3.15A
F2
3.15A
024VU
+24V
024V
5
1
+24VU
F1
3.15A
F2
3.15A
024VU
+24V
024V
4
-
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