Decommissioning - ABB MicroFlex e190 User Manual

Error
10033
ecSTO_ACTIVE
10035
ecSTO_INPUT_MISMATCH

Decommissioning

Before decommissioning any safety system from active service:
• Evaluate the impact of decommissioning on adjacent operating units and facilities
or other field services.
• Conduct a proper review and obtain required authorization.
• Ensure that the safety functions remain appropriate during decommissioning
activities.
Implement appropriate change management procedures for all decommissioning
activities.
Appendix: Safe Torque Off (STO) 203
Cause
Either one or both of the
STO inputs is not powered.

This error is detected when
the drive is enabled, or
when attempting to enable
the drive in software.
- safe switch or relay has
dropped an output that
controls the STO input.
- emergency stop switch
has been operated.
- faulty safety relay
The drive has detected a
mismatch in its internal STO
registers.

This error can occur while
the drive is enabled or
disabled.
- emergency stop switch
fault
- wiring fault
What to do
Use a test meter to check that
the device controlling the STO
input is providing the required
output.
Check the operation of the
emergency stop switch. Check
that the contacts close correctly
when the switch is reset.
Check the operation of the
safety relay.
Check the operation of the
emergency stop switch. Check
that the contacts close correctly
when the switch is reset.
Check that the period defined
by STOINPUTMISMATCHTIME
is long enough to allow both
STO inputs to settle.
Check the operation of the
emergency stop switch. Check
that the contacts close correctly
when the switch is reset.
Check all wiring for the STO
inputs.