1102 HEIDENHAIN Technical Manual MANUALplus 620
Possible causes:
 Speed too low
 Traverse range too short
 Use the integrated oscilloscope to check whether the configured axis jerk 
(e.g. MP_axJerk =500m/s
3
) is actually reached.
Result: The jerk actually achieved is only 364 m/s
3
.
Possible reasons
 Speed too low
 Traverse range too short
Setting the traverse 
range
To define the software limit switches, proceed as follows:
 Traverse the reference points, e.g. by pressing the Machine reference soft 
key.
 Enter NominalValue in the Axis display user parameter to display the 
nominal position with respect to the machine zero point.
 The position displays now show the distance to the machine zero point, 
without taking the tool lengths or zero point shifts into account.
 With the axis direction buttons or handwheel, move all axes in positive and 
negative direction until they almost reach the EMERGENCY STOP limit 
switch. Write down the displayed positions with the algebraic signs.
 Enter the noted values in the machine parameters MP_swLimitSwitchPos 
or MP_swLimitSwitchNeg.
Settings in the configuration editor MP number
Axes
ParameterSets
[Key name of the parameter set]
CfgPositionLimits
swLimitSwitchPos
swLimitSwitchNeg
400501
400502