
8.CONNECTION TO FANUC I/O Link B-63943EN/02
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DI (input signal) specifications
(General-purpose input signal)
Contact rating
30 VDC, 16 mA or more
Open circuit intercontact
leakage current
1 mA or less (at 26.4 V)
Closed circuit
intercontact voltage drop
2 V or less (including cable voltage drop)
Delay
Receiver delay: Max. 2 ms
The time required for I/O Link transmission
between the CNC and I/O module (max. 2 ms
+ CNC ladder scan cycle) must also be taken
into account.
(Matrix input signal)
Contact rating
6 VDC, 2 mA or more
Open circuit intercontact
leakage current
0.2 mA or less (at 26 V)
Closed circuit
intercontact voltage drop
0.9 V or less (with a current of 1 mA)
Delay
The maximum matrix period of 16 ms, the
maximum time of I/O Link transfer between
CNC and I/O module of 2 ms, and the ladder
scanning period (by CNC) must be
considered.
NOTE
When detour prevention diodes are used, the
voltage drop across closed contacts indicated
above must be maintained, including the diode
voltage drop.
DO (output signal) specifications
Maximum load current in
ON state
200 mA or less (including momentary current)
Saturation voltage in ON
state
Max. 1 V (when load current is 200 mA)
Withstand voltage
24 V +20% or less (including momentary
values)
Leakage current in OFF
state
20 µA or less
Delay
Driver delay: Max. 50 µs
The time required for I/O Link transmission
between the CNC and I/O module (max. 2 ms
+ CNC ladder scan cycle) must also be taken
into account.
NOTE
Ensure that the maximum current per DOCOM pin
(DO power supply pin) does not exceed 0.7 A.