Appendix: Safe Torque Off (STO) 201
Restarting the drive
Restarting the drive is not part of the STO test or certification processes, but is
included here for convenience.
Action
Deactivate the STO circuit (apply power to the STO inputs).
If the drive holds a Mint program, or is connected to an Ethernet master device that can
enable the drive, it is possible for the drive to restart and begin to control the motor without
further intervention. If the drive does not hold a Mint program, some of the following actions
are necessary, depending on the installation:
• Activate the additional drive enable input (if present).
• In Mint WorkBench (if connected), click the Clear errors button on the System toolbar,
followed by the Drive Enable button on the Motion toolbar.
• Enable the drive from the Ethernet master device (if connected).
Maintenance / servicing
Include the STO operation tests described in
Start-up, acceptance, and proof test
on page
in the routine maintenance program of the machinery
to which the drive is connected.
The STO function must be tested by authorized service personnel as frequently as
required by the proof test interval T
1
Start-up, acceptance, and proof test interval
. See also
Data related to safety standards
.
The STO input terminals do not need any maintenance. Maintain the drive according
to the instructions given in this manual.
The exchange of safety related systems or subsystems must be performed only in a
powerless condition.
The drive may only be opened by ABB authorized personnel.
Summary of Contents for MicroFlex e190
Page 1: ...ABB motion control User s manual MicroFlex e190 servo drive ...
Page 4: ......
Page 12: ...12 Table of contents ...
Page 26: ...26 Introduction to the manual ...
Page 90: ...90 Electrical installation input output ...
Page 146: ...146 Maintenance ...
Page 178: ...178 Resistor braking ...
Page 186: ...186 Accessories ...
Page 208: ...208 Appendix Safe Torque Off STO ...