Lenze 931K - Manual (Page 44)

Parameter setting
Physical units
7
l
44 KHB 13.0004−EN 2.1
U
E
U
A
x
1
x
2
931e_415
Fig. 8 Gearbox factors
U
E
Input−end speed
U
A
Output−end speed
x
1
Position_units in degrees
x
2
Position_units in mm
Notes on settings
ƒ From the set physical units conversion factors are automatically generated
internally. The conversion factors consist of a numerator and a denominator and
may not be longer than 32 bits.
ƒ The value of the feed constant is ignored for the respective physical unit if the feed
constant has a translatory unit and a rotatory unit is selected for the physical
quantity.
ƒ If the entries for the factors or physical units are incorrect, an overflow occurs and
the value is rejected.
ƒ Examples for incorrect settings:
Incorrect setting Effect
Position in [revolutions] and
feed constant in [mm/revolution] The feed constant is ignored.
Position in [mm] and
feed constant without a unit The feed constant is considered as a gearbox factor.
Position in [mm] and
feed constant in [
mm/revolution]
The feed constant is evaluated using the factor 1000.
ƒ The error message 59 ("General arithmetic error") is generated
– if incorrect settings result in values which cannot be represented after internal
conversion,
– if transition states occur which cause the overflow of physical units.
Remedy:
– Check the settings of the physical units and correct them if necessary.
– Save the settings and carry out a reset. If the error message 59 is not generated
anymore, the physical units are valid.