Mitsubishi Electric MELSEC-A/QnA Series Handbook page 226

6
HIGH-SPEED COUNTER MODULE REPLACEMENT
Point
1) Action to the replaced module
Input filter system of the AD61 and AD61S1 is the same as that of the QD62-H01 and QD62-H02.
Therefore, utilizing pulse generator such as existing encoder is possible.
2) Counting range of the counter
Counting range of the AD61 and AD61S1 differs from that of the QD62-H01 and QD62-H02.
To make the counting range same as that of the module before replacement, review the program.
AD61, AD61S1: 0 to 16, 777, 215 (24-bit unsigned binary)
QD62-H01, QD62-H02: - 2,147, 483, 648 to 2, 147, 483, 647 (32-bit signed binary)
3) Wiring to the module
External wiring method of the AD61 and AD61S1 differs from that of the QD62-H01 and
QD62-H02.
AD61, AD61S1: Wiring using a terminal block
QD62-H01, QD62-H02: Wiring using a connector
4) In module replacement, continuous use of the I/O signal wire with solderless terminal that has
been used for the AD61 or AD61S1 requires the change of the external wiring method as in (a)
(b).
(a) Using the upgrade tool (a conversion adaptor)
The existing wiring for AD61 and AD61S1 can be connected directly to the Q series modules
using the upgrade tool, a conversion adaptor, manufactured by Mitsubishi Electric
Engineering Co., Ltd.
Product
High-speed counter module
(b) For contact information for inquiries on the upgrade tool manufactured by Mitsubishi Electric
Engineering Co., Ltd., refer to Section 2.1.
6
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MELSEC-A/QnA
series module
AD61
AD61S1
MELSEC-Q
series module
QD62-H01
QD62-H02
Conversion adaptor
ERNT-AQTD61