Description of Units and Circuit Boards
8 - 81
• Example of SERVO ON Sequence Circuit from External Device
Only the rising edge of the SERVO ON signal is valid. This signal turns ON the robot
SERVO power supply. The set and reset timings are shown in the following.
NOTICE
Number in ( ) means output signal number assigned to YIU21.
PL: Pilot lamp
SERVO ON PB
SERVO ON confirmation
SERVO_ON command
Robot controller
Machine safety terminal block circuit board
Machine safety I/O logic circuit board
Universal I/O circuit board
SERVO-ON power ON
SERVO-ON is output
SERVO-ON power ON X3
1
21
22
CN219
+24V2
EXSVON
X1
CN308
+24VU
A8
A18
(30011)
X3
X1
㼄㻝
X2
PL
(JANCD-YSF22-E)
(JANCD-YFC22-E)
(30011)
1
2
3
5 6
3
7
9
8
2
10
4
JANCD-YIO21-E
2
3
4
5
6
7
8
9
10
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