
B-65322EN/02 I/O Link 9.TOTAL CONNECTION DIAGRAM
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9.2.15.2 *+OT, *-OT, and *RILK(*DEC)
Input signal specifications
The receiving circuit has a non-insulating interface that can switch
between the sink type (24 V common) and the source type (0 V
common). Safety standards require use of the sink type.
The contacts on the machine side must satisfy the following:
Contact capacity: 30 VDC, 16 mA or more
Leak current between contact points when a contact is closed:
1 mA or less (voltage: 26.4 V)
Voltage drop between contact points when a contact is closed:
2 V or less (current: 8.5 mA, including voltage drop in cable)
Signal connection to power magnetics cabinet
Filter and
receiver
Filter and
receiver
Filter and
receiver
Interlock signal input (reference position
return deceleration signal input)
βi SVM
+24V
JA72
(10),(19)
(6)
+ overtravel signal
input
*+OT
(7)
*-OT
- overtravel signal
input
(8)
*RILK
(11)
DIC
(12), (14), (16)
0V
NOTE
1 Use a common shield cable as cable K21.
2 For 0V, +24V, and DIC, wires of at least 7/0.18 (0.18mm
2
) must be used.
3 Except the pins indicated in the above figure, leave pins open. Never connect
unused conductors of the cable to these pins.
4 The above shows an example of the 24 V common type.
When the 0 V common type is used, connect DIC (JA72-11) to +24V (JA72-10, and
19), and the later stage of each switch to 0V (JA72-12, 14, and 16).