
Publication GMLC-5.2 - November 1999
512 Fault Variables
Axis Fault
Axis_fault is an integer value representing the highest priority fault
currently active on a specific axis. The table below shows the axis fault
values and the corresponding message that appears in a global fault or
axis status field in the terminal window or the runtime display (if
enabled).
The axis faults are prioritized from highest to lowest in the order shown in
the table above. This means that when a given fault is active, another fault
of lower priority may also be active. For instance, if a hardware overtravel
fault is active for an axis, a software travel limits exceeded condition may
also be active on the axis. When the highest priority fault is cleared,
Axis_fault has the value of the next highest priority fault.
See the descriptions of the individual axis faults below for an explanation
of these faults.
AxisLink Timeout
AxisLink_timeout is a logical (Boolean) variable that has a value of:
• 1 (true) if an AxisLink virtual axis connection which had been
operating properly has timed out, or
Fault
Value Description
Runtime
Display
Servo
Master Only
Virtual
Imaginary
7 AxisLink Timeout AXL FLT ✔
6 AxisLink Failed (axis not found) AXL FLT ✔
5 Drive Fault / Motor Thermal 1394 DRV FLT ✔
4 Position Error Tolerance Fault ERR FLT ✔
3 Hardware Overtravel Fault HRD LIM ✔
2 Software Overtravel Fault SFT LIM ✔
1 Encoder Noise or Loss Fault ENC FLT ✔✔
0 No Faults AXIS OK ✔✔✔✔
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