Equability Test - Siemens SINUMERIK 840D sl Function Manual

03/2013

2.2.5 Equability test

Function description
The equability test result returns the torque/force measurement curve over the axis
position and various torque characteristics. The characteristics are determined for
each direction of movement separately. If nothing else is described for the
characteristics, the characteristics refer to the position range without the
acceleration and braking ramps.
Characteristic
Maximum torque
Minimum torque
Average torque
Standard deviation
Gradient of the linear
trend of the
torque characteristic
Maximum torque in the
acceleration ramp
For axes that also have a direct measuring system the overall rigidity curve over
the axis position is also displayed. The rigidity is determined independently of the
direction. The following rigidity characteristics are calculated:
Characteristic
Maximum rigidity
Minimum rigidity
Average
rigidity
Standard deviation of
the rigidity
© Siemens AG 2006-2013 All Rights Reserved
SINUMERIK Integrate AMB, AMC, AMM, Function Manual (FH) - 03/2013
2.2 Variable monitors – time Series – measurements and measurement series
Description
The maximum returns the maximum torque in the
measured position range. For torque characteristics
with linear trend, the proportion of the trend is
calculated to determine the maximum torque.
The minimum returns the minimum torque in the
measured position range. With torque characteristics
with linear trend, the proportion of the trend is
computed for determining the minimum torque.
The characteristic returns the mean torque in the
measured position range with the configured speed.
Independently of the direction, a larger value always
corresponds to a larger torque in the direction of
movement.
The characteristic represents the standard deviation of
the torque characteristic in the measured position
range at the configured speed. With torque
characteristics with a linear trend, the proportion of the
trend is eliminated from the standard deviation.
The characteristic indicates the increase in the change
to the torque at position changes.
The characteristic indicates the maximum torque which
is run in the acceleration ramp.
Description
The characteristic returns the maximum rigidity value
via the rigidity characteristic in the measured position
range at the configured speed.
The characteristic returns the minimum rigidity value
via the rigidity characteristic in the measured position
range at the configured speed.
For calculating the characteristic, the mean rigidity
value is determined in the measured position range at
the configured speed.
For calculating the characteristic, the standard
deviation of the rigidity is determined in the measured
position range at the configured speed.
2 Machine information
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