Parameter: Guide Value Scaling Factor (0X3808) - Danfoss VLT Series Programming Manual

Servo Drive Parameter Descr...
fo Forward only:
0: Forward and backward movement is processed.
1: Only forward movement is processed.
If the movement of the reference input (master axis) is going backwards, the last forward directed position is kept. The
further forward movement is started when the last seen forward position of the reference input is reached again. If the
guide value goes back more than half of the range, the servo drive goes into fault state.
vel Use velocity:
0: Servo drive calculates the velocity from position differences internally.
1: Servo drive uses Velocity guide value object (0x2064).
ce Command error:
0: Plausibility check disabled.
1: Plausibility check enable.

7.8.4 Parameter: Guide Value Scaling Factor (0x3808)

The servo drive also supports scaling of the guide value. The scaling factor consists of a numerator and a denominator.
The value 0x0000 0000 must be reserved and not used for the numerator and the denominator objects. To be able to
change both values simultaneously, a writing order is defined. The activation of the new factor is done after the writing of
the numerator. This means to change both values at the same time, the denominator must be written first and the
numerator afterwards. It is also possible to only change the numerator by writing a new value (the denominator stays the
same). The numerator and denominator accept negative values. The division of 2 negative values results in a positive value.
The Position guide value is multiplied by the quotient of numerator and denominator.
Guide value scaled = (Guide value x Scaling value) + Guide value o set
Internally used 0x2060
Attribute
Index
Name
Object code
Data type
Sub-index
Description
Access
PDO mapping
Value range
Default value
Sub-index
LCP parameter number
Description
Access
PDO mapping
Value range
Default value
Sub-index
LCP parameter number
Description
Access
PDO mapping
Value range
MG36D102
Programming Guide
0x3808.01/02 0x3806
Danfoss A/S © 01/2017 All rights reserved.
Value
0x3808
Guide value scaling factor
Array
INTEGER32
0x00
Number of entries
Read only
No
UNSIGNED8
0x02
0x01
–
Guide value scaling numerator
Read/write
Optional
INTEGER32
1
0x02
–
Guide value scaling denominator
Read/write
Optional
INTEGER32
7 7
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