FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
4 Before Programming
4.9 Caution for Using the High-Speed Output Special Adapter (FX3U-2HSY-ADP)
B - 86
4.9 Caution for Using the High-Speed Output Special Adapter
(FX3U-2HSY-ADP)
1. Output terminals to be used
If the high-speed output special adapter is connected, output numbers will be assigned in the same way as
the main unit as shown in the following table. Use the output terminals of one side (main unit side or high-
speed output special adapter side), and do not connect lines to the output terminals of the unused side.
The outputs of the high-speed output special adapter and the main will operate as follows.
Assignment of output numbers
Operation of output
*1. The output frequency limit of the main unit transistor output is 100 kHz. When operating a load with a
pulse frequency exceeding 100 kHz, PLC failure may occur.
*2. Furthermore, use of the PWM (FNC 58) is not recommended with the relay type main unit and the
high-speed adapters due to chattering of the relay contacts.
*3. The PWM instruction does not support the triac output due to response delay of outputs.
• If an output number of the high-speed output special adapter is used (if an output of the high-speed output
special adapter is connected), do not use (connect) the corresponding output terminal of the main unit.
• If an output number of the main unit is used (if an output of the main unit is connected), do not use
(connect) the corresponding output terminal of the high-speed output special adapter.
Position of pulse output method
setting switch of high-speed
output special adapter
Signal
Name of
positioning
instruction
Output number
1st adapter 2nd adapter
1st axis 2nd axis 3rd axis 4th axis
FP
RP side
Forward rotation
pulse train (FP)
Pulse output
destination
Y000 Y001 Y002 Y003
Reverse rotation
pulse train (RP)
Rotation
direction signal
Y004 Y005 Y006 Y007
PLS
DIR side
Pulse train
Pulse output
destination
Y000 Y001 Y002 Y003
Direction
Rotation
direction signal
Y004 Y005 Y006 Y007
Unit
Output operation
PLSY,PLSR,DSZR,
DVIT,TBL,ZRN,PLSV,
DRVI,DRVA instruction.
PWM instruction
Other
instruction
FX
3U Series main unit
of relay output type
While instruction is
activated, relevant
output is ON. (LED is
also ON.)
Use of the PWM (FNC 58) instruction is not
compatible with a relay type main unit.
*2
Operated
FX
3U Series main unit
of transistor output
type
Operated
*1
Operated Operated
FX
3U Series main unit
of triac output type
While instruction is
activated, relevant
output is ON. (LED is
also ON.)
Use of the PWM (FNC 58) instruction is not
compatible with a triac type main unit.
*3
Operated
High-speed output
special adapter
Operated
Operated
The main unit should use the transistor output
type.
*2
Operated
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