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Hi,
Сan I use only one channel on PM240-2 (eg. only STO_A), activated via DIP-switch
(photo attached)?
I don't need any special Safety Function, I just need to be guaranteed to block/stop drive,
for this I usually open the linear contactor, but now I would like to use special inputs (STO).
Yes, you can use a single channel of the PM240-2 (e.g., STO_A) activated via DIP switch for blocking/stopping the drive, even without utilizing a full safety function.
The STO (Safe Torque Off) input, when activated, will reliably de-energize the drive, effectively providing the same functionality as opening a linear contactor. Using the STO input is a valid and often preferred method for drive shutdown in applications where a dedicated safety function isn't required, but a guaranteed stop is needed.
Important Considerations:
For detailed information on DIP switch settings and STO configuration, please refer to the PM240-2 documentation on SiePortal:
PM240-2 Documentation on SiePortal
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