Siemens SINUMERIK 840D sl Commissioning Manual page 320

Service and diagnostics
18.2 Displaying the Service overview
Parameters
Actual position value measuring system
1
Actual position value measuring system
2
Position setpoint
Absolute compensation value
measuring system 1
Absolute compensation value
measuring system 2
Compensation, sag + temperature
Actual speed value, active encoder
Speed setpoint, drive
Programmed spindle speed setpoint
Spindle speed setpoint current
Position offset to the
leading axis / spindle actual value
Position offset to the
leading axis / spindle setpoint
Override
Current gear stage
Parameter set (axis)
314
Meaning
The actual position of the axis measured via measuring system 1/2.
The position is displayed in the machine coordinate system (no zero offsets or
tool offsets taken into account).
Unit: mm, inches or degrees
Specified position transferred from the interpolator to the position control
Unit: mm, inches or degrees
Display of the absolute compensation value for measuring system 1 or 2.
The compensation value consists of the sum of backlash and leadscrew error
compensation for the actual axis position.
Unit: mm, inches or degrees
Display of the compensation value calculated for the current axis position based
on the total of the sag and temperature compensations.
Unit: mm, inches or degrees
The pulses supplied by the encoder are evaluated by the NC and displayed.
Unit: %
100% means maximum speed.
Speed setpoint transferred to the drive (= speed setpoint from position controller
and feedforward control)
Unit: %
100% means maximum speed setpoint.
Speed setpoint programmed by the user.
Unit: rpm
For example: Input: S1000; display: 1000 rpm
Display applies to spindles only.
Current active speed setpoint with correct sign, including calculated
compensation value and any active speed limitation (specified by setting or
machine data).
Unit: rpm
Display applies to spindles only.
The currently valid position offset value is displayed here (relative to the actual
value) if a position offset (angular offset between the following and leading
spindle) has been programmed within the synchronous spindle functionality.
Unit: mm, inches, degrees
The currently valid position offset value is displayed here (relative to the setpoint)
if a position offset (angular offset between the following and leading spindle) has
been programmed within the synchronous spindle functionality.
Unit: mm, inches, degrees
The effective correction factor of the feed or spindle correction switch is
displayed.
Unit: %
Display of the current actual gear stage.
With axes, this is only displayed if a spindle is assigned to the axis. The display
corresponds to the NC/PLC interface signal:
DB31, ... DBX16.0-2 (actual gear stage)
Displays which of the six parameter sets of the position controller is active.
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
SINUMERIK Operate (IM9)