July 2010 16 – 229
16 Checking the Enables on the iTNC 530
16.1 Introduction
For an operating axis (axis in control loop) ...
no "Axis clamped" symbol is shown.
the "STIB" star (control-in-operation) is visible
the feed rate display must not be highlighted.
the position display (ACTL, NOML) changes when the axis moves.
The appropriate enables are required in order to work with axes or spindles.
If one or several enables are missing, an error message is output or the axes and/or the spindles
cannot be operated.
The following conditions must be fulfilled to drive axes and spindles:
Closed
EMERGENCY-STOP
chain
The EMERGENCY-STOP chain must be closed!
The EMERGENCY STOP chain involves ...
the EMERGENCY STOP button on the machine operating panel
the EMERGENCY STOP button on the handwheel (if available)
Hardware axis limit switch (if available)
the control itself (alternatively also PL module)
The "Control is ready" output switches, e.g., a relay whose contacts are part of the
EMERGENCY-STOP chain.
In the event of severe errors, the control resets the "Control is ready" output and thus interrupts
the EMERGENCY STOP chain.
READY
symbol
Clamping
symbol
Feed rate
display
Position display
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