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Fault tracing
The indications given during the normal operation of the Safe torque off function are selected
by drive control program parameter
31.22
.
The diagnostics of the Safe torque off function cross-compare the status of the two STO
channels. In case the channels are not in the same state, a fault reaction function is
performed and the drive trips on an “STO hardware failure” fault. An attempt to use the STO
in a non-redundant manner, for example activating only one channel, will trigger the same
reaction.
See the firmware manual of the drive control program for the indications generated by the
drive, and for details on directing fault and warning indications to an output on the control
unit for external diagnostics.
Any failures of the Safe torque off function must be reported to ABB.
The Safe torque off function 205
Summary of Contents for ACQ580-34
Page 1: ... ABB DRIVES FOR WATER ACQ580 34 drive modules Hardware manual ...
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Page 132: ...Dimension drawing 132 External control unit option P906 ...
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Page 184: ...Standard configuration E208 and E210 included 184 Dimension drawings ...
Page 185: ...Drive module with option B051 Dimension drawings 185 ...
Page 186: ...Drive module with options B051 H370 186 Dimension drawings ...
Page 187: ...LCL filter module Dimension drawings 187 ...
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Page 208: ... Declaration of conformity 208 The Safe torque off function ...
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