Mitsubishi FX3U Series Programming Manual page 355

FX /FX Series Programmable Controllers
3U 3UC
Programming Manual - Basic & Applied Instruction Edition
4. Handling of pulse output terminals in the FX
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 "pulse chain + direction"
(PLS DIR) side.
If the switch is set to "forward rotation pulse chain, reverse rotation pulse chain" (FP RP) side, normal
operations are disabled because the pulse output destination switches depending on the PLC output
status as shown in the table below.
Pulse output
destination
= Y000
D
= Y001
D
3) Set the pulse output type setting switch while 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.
Use only an output terminal. Do not perform wiring to the unused 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 adapter
Setting status of output
form setting switch
Set to "FP RP" side
Set to "PLS DIR" side
Output operation
Relay output type main unit
Special high speed output adapter
Output giving
effect on operation
While Y004 is ON in PLC, pulses are output from Y000 in high speed output
adapter.
Y004
While Y004 is OFF in PLC, pulses are output from Y004 in high speed output
adapter.
While Y005 is ON in PLC, pulses are output from Y001 in high speed output
adapter.
Y005
While Y005 is OFF in PLC, pulses are output from Y005 in high speed output
adapter.
Signal name
Forward rotation
pulse chain (FP)
Reverse rotation
pulse chain (RP)
Pulse chain
Direction
Corresponding output remains ON (and the LED remains ON also) while the
instruction is executed.
Outputs turn ON and OFF normally.
13 High Speed Processing – FNC 50 to FNC 59
13.8 FNC 57 – PLSY / Pulse Y Output
-32MT-LT
3UC
Operating voltage range
Operating current range
Output frequency
Equipment
load
resistor
External
power
supply
Input circuit
Operation
Setting name in each
positioning instruction
1st axis 2nd axis 3rd axis 4th axis
Pulse output destination
Rotation direction signal
Pulse output destination
Rotation direction signal
Output operation
Item Description
5 to 24V DC
10 to 100 mA
100 kHz or less
PLC
Dummy (transistor output)
resistor
[sink output]
Y000 or
Y001
COM1
Output number
1st unit 2nd unit
Y000 Y001 Y002
Y004 Y005 Y006
Y000 Y001 Y002
Y004 Y005 Y006
11
12
13
14
15
16
17
18
Y003
Y007
19
Y003
Y007
20
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