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393
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
13 High Speed Processing – FNC 50 to FNC 59
13.8 FNC 57 – PLSY / Pulse Y Output
11
FNC3
0-F
NC3
9
R
otati
on and
Shif
t
12
FNC4
0-F
NC4
9
D
ata
O
per
ati
on
13
FN
C
50-FN
C
59
H
igh Speed
Pr
ocess
ing
14
FM
C
60-
FN
C
69
H
andy
In
st
ru
ct
ion
15
FNC7
0-F
N
C7
9
Ex
ter
nal
FX
I/O
D
evice
16
FN
C
80-FN
C
89
Ext
ernal FX
De
vic
e
17
FN
C
100-
FN
C
109
Da
ta
Transf
er 2
18
FN
C
110-
FN
C
139
Fl
oati
ng Poi
nt
19
FN
C
140
-F
N
C
14
9
Da
ta
O
per
ati
on 2
20
FN
C
150-
FN
C
159
Posit
ioning
C
ontr
ol
4. Handling of pulse output terminals in the FX
3G
, FX
3U
and FX
3UC
series main units
The outputs Y000 and Y001 are the high
speed response type.
When using a pulse output instruction or
positioning instruction, adjust the load current
of the open collector transistor output to
about 10 to 100 mA (5 to 24V DC).
When the load is smaller, connect a dummy
resistor in parallel to the outside of a used
output terminal (Y000 or Y001) as shown in
the circuit diagram below so that the
specified current shown above flows in the
output transistor.
5. Cautions on using special high speed output adapters
1) Outputs of special high speed output adapters work as differential line drivers.
2) Set the pulse output type setting switch in a special high speed output adapter to the "pulse chain +
direction" (PLS
x
DIR) side.
If the switch is set to the "forward rotation pulse chain reverse rotation pulse chain" (FP
x
RP) side, normal
operations are disabled. The pulse output destination changes depending on the PLC output status as
shown in the table below.
3) Set the pulse output type setting switch while the PLC is stopped or while the power is OFF.
Do not manipulate the pulse output form setting switch while pulses are being output.
4) When special high speed output adapters are connected, the same output numbers in the main unit are
assigned as shown in the table below.
Only wire the appropriate output terminals.
Outputs in special high speed output adapters and the main unit operate as shown below.
Assignment of output numbers in special high speed output adapters
Output operation
Pulse output
destination
Output affecting
operation
Operation
=
Y000
Y004
While Y004 is ON, pulses are output from Y000 in the high speed output adapter.
While Y004 is OFF, pulses are output from Y004 in the high speed output
adapter.
=
Y001
Y005
While Y005 is ON, pulses are output from Y001 in the high speed output adapter.
While Y005 is OFF, pulses are output from Y005 in the high speed output
adapter.
Status of output form
setting switch
Signal name
Setting name in each
positioning instruction
Output number
1st unit
2nd unit
1st axis 2nd axis 3rd axis 4th axis
"FP
x
RP" side
Forward rotation
pulse chain (FP)
Pulse output destination
Y000
Y001
Y002
Y003
Reverse rotation
pulse chain (RP)
Rotation direction signal
Y004
Y005
Y006
Y007
"PLS
x
DIR" side
Pulse chain
Pulse output destination
Y000
Y001
Y002
Y003
Direction
Rotation direction signal
Y004
Y005
Y006
Y007
Output operation
Relay output type main unit
While instruction is activated, relevant output is ON. (LED is also ON.)
Use a special high speed adapter.
Special high speed output adapter
Operated.
Set the output frequency to "200kHz" or less.
Transistor output type main unit
Operated.
Set the output frequency to "100kHz" or less.
Item
Description
Operating voltage range
5 to 24V DC
Operating current range
10 to 100 mA
Output frequency
100 kHz or less
External
power
supply
Equipment
load
resistor
Dummy
resistor
Y000
COM1
PLC
(transistor output)
[sink output]
Input circuit
D
D