Input Specifications; High-Speed Input Special Adapter (Fx 3U -4Hsx-Adp); Cautions In Connecting Mating Device - Mitsubishi FX3U SERIES User Manual

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
11.2

Input Specifications

For input to the high-speed counters, the input terminals X000 to X007 of the main unit or high-speed input
special adapter are used.
11.2.1 High-speed input special adapter (FX
1. Performance specifications
Item
Number of input points 4 points (These points are not included in the total number of PLC input/output points.)
Input form
Max. input frequency
Min. pulse width
Insulation
Wiring length
*1. The maximum input frequency to the software counters
to the input terminals of the main unit.
*2. The software counters include hardware counters that operate as software counters.
2. Internal circuit of input interface
Rotary encoder, etc.
*1 X00 indicates input number of the high-speed input
special adapter.
*2 SG of the first unit and SG of the second unit are
insulated from each other.

11.2.2 Cautions in connecting mating device

Encoders with the output forms in the following table can be connected to the input terminals. (The encoders
may not function correctly depending on electrical compatibility. Check the specifications in advance.)
Voltage output type encoders and absolute encoders cannot be connected to the high-speed counter input
terminals.
Terminals for connecting
Input terminals of main unit
Input terminals of FX
184
→ For the input specifications for X000 to X007 of the main unit, refer to Section 10.2.
Differential line receiver (equivalent to AM26C32)
1-phase 1-input
1-phase 2-input
2-phase 2-input 100kHz
1 µs or more
The external wiring of the input block and the PLC are insulated with a photocoupler or a
transformer.
Up to 10m
→ For details on the responce frequency, refer to Subsection 11.9.2.
→ For the conditions under which the hardware counters operate as software counters,
5V DC
Non-inverted output
Phase A/B/Z
Inverted output
Phase A/B/Z
0V
-4HSX-ADP
3U
-4HSX-ADP)
3U
Specification
200kHz
High-speed counter operating with hardware counter
*2
is the same as that of signals to be captured
Twisted-pair shielded wire
Class D
grounding
Output form that can be directly connected
Open collector transistor output form
(applicable to 24V DC)
Differential line driver output form
Set the input voltage of FX
11 Use of High-speed Counters (C235 to C255)
refer to Subsection 11.8.1.
High-speed input special adapter
5V DC
*1
X00 +
*1
330Ω
X00 -
SG
*2
SG
-4HSX-ADP to 5V DC or less.
3U
11.2 Input Specifications
*1
Equivalent to
AM26C32