Vacon optbj Safety Manual

7vacon • 40 MaintenanceLocal contacts: https://www.danfoss.com/en/contact-us/contacts-list/30 Safety configuration 507 The hardware does not supportthe OPTBJ board.• Restart the drive.• Should the fault re-occur, con-tact the distributor near to you.30 Safety diagnostics 520There is a diagnostic failure inthe STO safety function. Thisfault occurs when the STOinputs are in a different state formore than 500 ms.• Restart the drive.• If the restart does not help,check the wiring: Both STOinput channels of OPTBJ needto be on the same state, i.e.safety device controlling theinputs needs to feed or cutpower from both STO1 and STO2channels simultaneously.• If the inputs are on the samestate and the fault re-occurs,replace the OPTBJ board.• Should the fault re-occur, con-tact the distributor near to you.Deliver the fault report to thedistributor, see fault details formore information.30 Safety diagnostics 521 Atex-thermistor diagnosticfault.• Restart the drive.• If the restart does not help,change the OPTBJ board.• Should the fault re-occur, con-tact the distributor near to you30 Safety diagnostics 522 Atex-thermistor short-circuit.• Check the connection of theAtex-thermistor• Check the thermistor• Restart the drive.• If the restart does not help,change the OPTBJ board.• Should the fault re-occur, con-tact the distributor near to you30 Safety diagnostics 523 Problem occured in internalsafety circuit• Reset the drive and restart. Ifthe fault reoccurs contact yournearest distributor.30 Safety diagnostics 524 Overvoltage detected in safetyoption board• Reset the drive and restart. Ifthe fault reoccurs contact yournearest distributor.30 Safety diagnostics 525 Undervoltage detected in safetyoption board• Reset the drive and restart. Ifthe fault reoccurs contact yournearest distributor.30 Safety diagnostics 526Internal failure detected insafety option board CPU ormemory handling• Reset the drive and restart. Ifthe fault reoccurs contact yournearest distributor.30 Safety diagnostics 527 Internal failure detected insafety function• Reset the drive and restart. Ifthe fault reoccurs contact yournearest distributor.Fault code Fault ID Explanation Correcting measures