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DESCRIPTIONDESIG.DATE
I/O module type-2 fo
Connector board
Connection manual
A-80950E
FANUC LTD
10. DI/DO Signal Specifications
The specifications of the DI/DO signals used with the basic module and
expansion module are shown as below.
DI(Input signal specifications)
Number of points 48 points (per module)
Contact rating DC30V、16mA or more
Leakage current between
Contacts when opened
1mA or less(26.4V)
Voltage decrease
Between Contacts when
closed
2V or less (including cable voltage decrease)
Delay time The receiver delay is 2 ms(maximum). In addition,
[I/O Link transfer time between CNC and I/O
module(2msmaximum)] + [ladder scan period(depending
on CNC)] must be considered.
DO(Output signal specifications)
Number of points 32 pints (per module)
Maximum load current
When ON
200mA or less including momentary variations
Saturation voltage
When ON
1V(maximum) when the load current is 200mA
Withstand voltage 24V + 20% or less including momentary variations
Leakage current
When OFF
20μA or less
Delay time The receiver delay is 50μs(maximum). In addition,
[I/O Link transfer time between CNC and I/O
module(2msmaximum)] + [ladder scan period(depending on
CNC)] must be considered.
ON/OFF of the power supply(DO common) for DO signals(output signals)
By turning off(opening) the power supply pin(DOCOM) for the DO signals(output
signals),All the DO signals of each module can be turned off the same time.
At this time, The DO state is as shown below.
Note: When DO is on in the sequence, the ON/OFF state of DOCOM is
directly reflected in the DO state.
ON
OFF
ON
OFF
ON
OFF
DO state when DO is
on in the sequence
DO state when DO is
off in the sequence
DOCOM