Drive
unit
connections
The
l/O
signals exchanged between the
PGU
and the drive unit include the following:
r
FX-1GM
PGU
Outputs FP, RP (type-A) or
PLS, SIGN (type-E), depend
upon parameter settings
to
meet the
DRU
specifications.
M
FPPLS
I
P
C
PG
0
Zero-return signal
0
CLR
Clear sianal
/\
-
,
ON when at the machine home position
and when the LSFiLSR are activated.
No
pulse is
generated unless
this signal is
ON.
An error is output
time limit.
r
Drive
unit
(DRU)
Forward or backward
Example: One pulse
angle
of
7.2
per motor roJation
One pulse per each
tion of the motor
rotation or half-rota-
Clear
of
deviation
counter
Output when power
to
the drive unit is turned
ON and is operating
normally.
signal
Positioning completed
when the differential
'
than the set value
,
counter value is less
....
......
I
T
I
7-7-
,.
....
In the case
of
a
servo
motor
...
.............
LSF Limit switch forward
LIMIT
SWITCH
FORWARD
LSR Limit switch reverse
LIMIT
SWITCH
REVERSE
Forward limit switch
Also error output
-
FLQ-
Backward limit switct
D
DOG Near-point signal
0
,
o
Near-point dog switcl
-
Machine
-
17-
.-
-
....
.
--
.-
...............
.-
...
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