Background:

MX2-V2 Rev. AAAA, support STO operation (GS1 and GS2 simultaneous action) but have limitations in timing when the safety controller has test pulse diagnostic enabled (small pulse only in GS1 or GS2 for wiring diagnostics purposes). If the Safety Controller pulse time is too long, an STO condition may appear, which provokes that the motor will stop, which is not the intended action for the test pulse diagnostic. Due to the time differences MX2-V2 Rev. AAAA firmware does not support all the cases that MX2-V1 originally does.

Solution:

The solution has been to implement the new MX2-V2 Rev. AAAB, to cover (and exceed) MX2-V1 capability. This is the result of practical tests and measurements. Now Omron Safety controllers such as G9SP (with test pulse length of 640μs) can be used with MX2-V2 Rev. AAAB.

Further information

Check Nameplate

3G3MX2-V2 With OSSD safety test pulse tolerance issue.

3G3MX2-V2 Without OSSD safety test pulse tolerance issue and updated. (Note: Rev. AAAB or greater)

 

 

What to do if you have Rev. AAAA?

This issue has been resolved through software, therefore there is the potential of flashing the 3G3MX2-V2 unit if sent to Omron. So it you encounter this issue when interfacing your 3G3MX2-V2 Rev. AAAA with OSSD outputs from safety device, then please contact you local Omron representative or 1300 766 766.