we have a pipe cutting machine that was out of use for a long time, so the battery for plc was gone.
I replaced plc battery, but now both servo axes only moves forward, no backward movement.
machine has;
A1SJH PLC,
A1SD75P2-S3 Positionning module,
2 MR-j2s-100a servo drivers.
when i check the program i can see that plc is sending correct signals (y56,y57 for axis 1 and y58,y59 for axis 2) to the module. and when i press the mode button on the A1SD module i can see that the axis i m trying to move goes on JOG mode. but no backwards movements on both axis. no alarm on anything. seems like either module not sendind signals to drivers or i m missing some parameters on module?drivers?plc?
i did find a matching machine and they let me get backups for plc, so i downloaded that machines parameters and data but no luck.
i m not very experienced on mitsubishi plc, especially with positionning modules and i m kinda lost where to check, any help is appreciated.
I replaced plc battery, but now both servo axes only moves forward, no backward movement.
machine has;
A1SJH PLC,
A1SD75P2-S3 Positionning module,
2 MR-j2s-100a servo drivers.
when i check the program i can see that plc is sending correct signals (y56,y57 for axis 1 and y58,y59 for axis 2) to the module. and when i press the mode button on the A1SD module i can see that the axis i m trying to move goes on JOG mode. but no backwards movements on both axis. no alarm on anything. seems like either module not sendind signals to drivers or i m missing some parameters on module?drivers?plc?
i did find a matching machine and they let me get backups for plc, so i downloaded that machines parameters and data but no luck.
i m not very experienced on mitsubishi plc, especially with positionning modules and i m kinda lost where to check, any help is appreciated.
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