Moog MSD Servo Drive Series User Manual

8.2.1.4Infinitedrivingjobwhenusingindexingtablefunction
In the case of infinite driving jobs the drive moves at constant speed, regardless of a
transmitted target position, until the mode is deactivated or is overwritten by a new
driving job. On switching to the next driving set (absolute or relative), the new target
position is approached in the current direction of movement. A preset path
optimization is ignored when the indexing table is active.
8.2.1.5Relativedrivingjobwhenusingindexingtablefunction
Relative driving jobs may relate to the current target position or to the actual position.
For more information see "Field Buses" user manuals.
In the case of relative driving jobs greater travel distances than the circumferential
length are possible.
Example without gear ratio:
 Circumferentiallength=360°
 Relativetargetposition=800°
 Startposition=0°
 Movement:
Thedrivewillcompletetwomotorrevolutions(720°)andstopatthe3rd
revolutionat80°(800°-720°).
8.2.2SERCOS
When using the SERCOS profile, scaling of the units is termed weighting. The
weighting describes the physical unit and the exponent with which the numerical
values of the parameters exchanged between the master control system and the
drives are to be interpreted. The weighting method is defined by the parameters for
position, speed, force / torque and acceleration weighting.
MOOG
ID
No.: CB40859-001 Date: 02/2018
MSD Servo Drive- Device Help
168
8 Motion profile
Fig. 8.10: Dialog box for scaling via SERCOS
ID Index Name Unit Description
163 0 MPRO_FG_Config Factorgroupconfiguration
10043 0 COM_SER_
PolaritySpeed
Speedpolarityparameter
10044 0 COM_SER_
ScaleTypSpeed
Velocitydatascalingtype
10045 0 COM_SER_
ScaleFactorSpeed
Velocitydatascalingfactor
10046 0 COM_SER_
ScaleExpSpeed
Velocitydatascalingexponent
10055 0 COM_SER_PolarityPos Positionpolarityparameter
10076 0 COM_SER_
ScaleTypPos
Positiondatascalingtype
10077 0 COM_SER_
ScaleFactorPos
Linearpositiondatascalingfactor
10078 0 COM_SER_
ScaleExpPos
Linearpositiondatascalingexponent
10085 0 COM_SER_ Torquepolarityparameter
Table 8.5: “Standardization / units - SERCOS” parameters

Moog MSD Servo Drive Series Specifications

General

Brand	Moog
Model	MSD Servo Drive Series
Category	DC Drives
Language	English