6. CONNECTION OF I/O UNITS TO
Maximum load current in ON state 200 mA or less (including momentary
Saturation voltage in ON state Max. 1 V (when load current is 200 mA)
Withstand voltage 24 V +20% or less (including momentary
Leakage current in OFF state 20 mA or less
Delay Driver delay: Max. 50 ms
The time required for I/O Link
transmission between the Power Mate
and I/O module (max. 2 ms + ladder scan
cycle) must also be taken into account.
Ensure that the maximum current per DOCOM pin (DO
power supply pin) does not exceed 0.7 A.
DO signal reaction to a system alarm
If a system alarm occurs in the CNC using the operator’s panel I/O
module, or if I/O Link communication between the Power Mate and
operator’s panel I/O module fails, all the DO signals of the I/O module
are turned off. Therefore, sufficient care is necessary when setting up the
machine sequence. Also, the same phenomenon occurs if the power to
the Power Mate or the I/O module is turned off.
For the operator’s panel I/O module, I/O addresses are mapped as follows.
Xm+15(DO alarm detection)
Xm+12(for 1st MPG)
Xm+13(for 2nd MPG)
Xm+14(for 3rd MPG)
DI space map DO space map
DO alarm detection
DO (output signal)