Mitsubishi Electric MELSEC L Series Manual page 184

6
HIGH-SPEED COUNTER MODULE REPLACEMENT
Point
1) Module replacement
A pulse generator, such as an encoder, that is connected to an AnS series module can be
connected to a L series module.
Check the operation of the device before actually used in the system because the operating
environment (the external wiring method) differs.
2) Counting range of the counter
Counting range differs between AnS series modules and L series modules.
To change the counting range so that the ranges will be the same in the modules before and after
the replacement, program needs to be reviewed.
A1SD62(E/D/D-S1): 0 to 16777215 (24-bit unsigned binary)
A1SD61, LCPU (built-in I/O function), LD62(D): -2147483648 to 2147483647 (32-bit signed
binary)
3) Wiring
An external wiring method differs between AnS series modules and L series modules.
A1SD61, A1SD62 (E/D/D-S1): Wiring using a terminal block
LD62(D), LCPU (built-in I/O function): Wiring using a connector
When using an I/O signal wire with a solderless terminal of the A1SD61 or A1SD62 for the
purpose of module replacement, change the external wiring method according to (a) or (b).
(a) Using the upgrade tool (conversion adapter)
The upgrade tool (conversion adapter) manufactured by Mitsubishi Electric Engineering Co.,
Ltd. enables to connect the existing wiring that was connected to the A1SD61 or A1SD62 to L
series modules without change.
Product
High-speed counter
module
*1 For details on the conversion adapter or LG69, refer to the Transition from MELSEC-AnS/QnAS (Small Type) Series to L
Series Handbook (Fundamentals)
6
- 4
Existing module model Alternative module model
A1SD61
LD62
A1SD62
*1
Conversion adapter model Space module LG69
ERNT-ASLTD61
Available
ERNT-ASLTD62
*1