6
6.2
Positioning mode (P0700 = 3, from SW 2.1)
6-361
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
6.2.2
Units for travel, velocity and acceleration
When setting the dimension system (mm, inch or degrees) for a drive
configuration in the ”Position mode”, then the dimension system grid
(MSR) is also defined:
Table 6-12
Dimension system and dimension system grid (MSR)
Dimension system
Meaning
P0100 = 1
mm
1 MSR = 10
–3
mm (
µ
m, micrometers)
P0100 = 2
inch
1 MSR = 10
–4
inch
P0100 = 3
Degrees
1 MSR = 10
–3
degrees (mdegrees, milli de-
grees)
Reader’s note
The units of the physical quantities are displayed differently or must be
interpreted differently.
In the parameter list (refer to Chapter A.1) and when reading and
writing into parameters via PROFIBUS–DP, there is the dimension
system grid (MSR) or a multiple (constant) of the MSR.
Examples in the mm dimension system:
– Distance (travel) has the units [MSR]
– Velocity has the units [c*MSR/min], c = 1
– Acceleration has the units [1000 MSR/s
2
]
For the display unit on the front panel of the control board and for
SimoCom U (for the dialog boxes and the expert list), there are
converted units.
Examples in the mm dimension system:
– Travel (distance) has the units [mm]
– Velocity has the units [mm/min]
– Acceleration has the units [mm/s
2
]
The units for the various dimension systems (mm, inch or degrees)
can be listed in the following tables using specific examples.
Dimension system
grid (MSR)
6 Description of the Functions
01.99
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