2.1 Replace A/QnA (Large Type) Series with Q Series
(3) Replace A/QnA (Large Type) Series 200 V AC input module AX21
[Use FA goods (manufactured by Mitsubishi Electric Engineering Co., Ltd.)]
Solution and Benefit
• Use the Q Series large type input module QX21L to replace the modules without changing the
Note that if the Q Series large type base unit cannot be used because of space limitations in the
panel or because of the module configuration, etc., replacements can be completed easily by
using the FA goods.
• A dedicated cable is available to connect the programmable controller with the FA goods, so
there's no need to prepare cables when making a replacement.
A variety of FA goods, including a terminal block connector conversion module, I/O type converter (AC input ->
DC input conversion, DC output signal -> relay output conversion, etc.), are available. Use these convenient
products as relays, signal conversions and a means to reduce wiring when compatible modules are not available
for replacing from the A/QnA (Large Type) Series to the Q Series.
The following is an example of replacing the A (Large Type) I/O module with the Q Series using FA goods.
(1) Using the FA goods, convert the 200 V AC input into 24 V DC, and lead it in with QX41, etc.
(2) The external wiring will change, but program does not need to be changed since the I/O address is the same.
(3) The following FA goods are used.
200 V AC photo
● System configuration example
(200 V AC 32-point input for AX21)
● Application (CC-Link input module)
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(1) 200 V AC input module insulated with
(2) Input module on programmable controller side
QX41, QX42, QH42 and QX41Y41P
(3) CC-Link module
(4) Connection cable
New configuration after replacement
200 V AC input
FM2V and FA-CBL
200 V AC input