Siemens SIMOVERT MASTERDRIVES Manual page 1308

Parameter Description
U550* ____________________________________________
MDI Set 1
Specification of the fixed MDI traversing data record No. 1
2550 ... 10
via parameters U550 ... 559
_____________________________________________
Specification of MDI traversing data record No. 1.
This MDI record belongs to the 10 fixed positioning
records stored as parameters which can be selected via
the bits 8...11 of the positioning control word [809].
An MDI traversing data record is split up into 3 indices:
Index 1: G-functions
positioning)
acceleration/deceleration values specified in MD18 and
MD19
increments of 10% to 100%.)
measure
Index 2: Position setpoint
was defined by the actual value weighting factor in
position sensing. (e.g. P169 and P170 for motor encoder)
Index 3: Traversing speed
unit
Function diagram 823
U551* Setting of MDI traversing data record 2, description see
MDI Set 2 U550
2551 Function diagram [823]
Siemens AG 6SE7087-6QX70 (Edition AG)
SIMOVERT MASTERDRIVES Compendium Motion Control
The value consists of two G-functions:
1st G-function: positioning type
Value 90 ==> G90: Absolute measure (absolute
G91: String measure (relative positioning)
Value 91 ==> G91: incremental dimension
2nd G-function: Acceleration override
(weakening factor for the
This weakening factor can be adjusted in 10%
Value 30 ==> G30 ==> 100% Override
Value 31 ==> G31 ==> 10% Override
to
Value 39 ==> G39 ==> 90% Override
Example: U511.1=9030
==> Positioning type = G90 = absolute
==> Acceleration override = G30 = 100%
The value is preset in the length unit LU which
Example:
- Position setpoint 123,5mm
has to be set
- Length unit is LU=0.001mm
==> U550.2=123500
The traversing speed is specified in the
[10*LU/min].
Example:
- The speed 5000 mm/min
has to be set
- Length unit is 0.1 mm
==> U550.3=5000
Data Read/write
index1: 9030 Menus:
Min: - - Parameter menu
2147483647 + Technology
Max: + Positioning
2147483647 + Setting up/MDI
Unit: - - Upread/free access
Indices: 3 Changeable in:
Type: I4 - Ready to switch on
- Operation enabled
index1: 9030 Menus:
Min: - - Parameter menu
2147483647 + Technology
Max: + Positioning
2147483647 + Setting up/MDI
Unit: - - Upread/free access
Indices: 3 Changeable in:
Type: I4 - Ready to switch on
- Operation enabled
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