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Aux. relays
M 1 1 0 to M117 and M120 t o M127 aux. relays (16 points in all) are prepared in the PGU, which can
be freely utilized by the user.
The following special aux. relays (except for M103) can only be read, as they are reserved and driven
automatically by the PGU.
BFM#4 bO
BFM#4 b l
BFM#4 b2
BFM#4 b3
This is active at all times in the AUTO mode if an error has not been generated.
This is used to forcibly drive various coil instructions which are driven by contacts.
(see page 126).
In the AUTO mode, M101 is set and held when
DRV ZRN is completed.
It is only reset
when the mode is switched to MANUAL or the power is turned OFF.
Therefore, this can be used so that home reset only occurs 1 time (see page 45).
However, when the PARA number 23 setting is '2' or "3', M101 is turned
ON by the
machine home position return regardless of the operating mode, and the operation status
is held even after AUTO mode is canceled.
M102 is ON when a start pulse is received in the AUTO mode, and is reset
by the STOP
input (BFM#l b4 signal sent from input terminal
of the PGU or the programmable
controller).
M102 may serve as the signal
to
acknowledge that a start command has already been
entered.
When M103 is driven, execution
of the succeeding steps (excluding
ELK inst.) are
prohibited anywhere in the program.
1 -step transfer is executed each time the START command is applied (see page
50).
This is valid when both BFM#1
bO and b l are OFF.
If B F M # l bO is ON and b l is OFF,
M103 is operated and a similar stepping operation is performed.
These are used as general outputs
to
programmable controllers.
When M110 to M117 are turned ON and OFF, BFM#4 b8
to b15 go
ON and OFF
BFM#4
These are used as general inputs from programmable controllers.
When BFM#2 bO to b4 and b8 to b15 are turned ON and OFF, Y440 to Y444 and M120
to M127 go ON and OFF.
EFM#2
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