Description of Units and Circuit Boards
8
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54
8.5
Machine safety I/O logic circuit board
Followings are the main functions of machine safety I/O logic unit.
It processes external safety signals with the dual processing circuits and control ON/OFF
of the main circuit control contactor of the power ON unit according to conditions.
Followings are the main functions of machine safety I/O Logic unit.
•
System safety input circuit (dual circuits)
•
User safety input circuit (dual circuits)
•
User safety output circuit (dual circuits)
•
Emergency stop signal input circuit (dual circuits)
•
SERVO power control signal output circuit (dual circuits)
•
Anti-safety I/O circuit for the robot system
•
Machine safety terminal block circuit board I/F
NOTICE
If the F1 fuse becomes blown, it will cause a damage on the inner circuit of the board.
Replace the board instead of replacing the fuse (there is no attached spare of the fuse).
Fuse for protecting the power supply 1A/
250V (F1)
Fuse for protecting the power supply 2A/
250V (F2)
Power supply input connector (CN213)
Rotary switch (S1/S2)
(Communication with the CPU unit: 2-chan-
nel side) I/O I/F (CN211)
(Communication with the CPU unit: 1-chan-
nel side) I/O I/F (CN211)
Major axes control circuit board I/F connec-
tor (CN214)
OT, SHOCK, LAMP (CN215)
FANALM, FANCTL (CN216)
Output connector contactor control (CN217)
PP I/F connector (CN209)
Terminal for the grounding connection
Connection board machine safety I/F con-
nector (CN219)
1
2
3
4
5
6
7
8
9
13
10
11
12
2
3
4
5
6
7
8
9
10
11
12
13