Danfoss VLT ISD 410 Operating Instructions Manual page 52

Appendix
Function block
Device functionalities are accessible via CoDeSys function
modules.
Gear ratio
The speed ratio of the input pinion and the output shaft of
the gear unit.
Gear unit
External gear unit used to change the output shaft speed
and the torque on the motor shaft.
Hole circle
The hole patterns of the ISD and IEC flanges.
IEC flange
Industry-standard flange
Installation elevation
Installation elevation above normal sea level, typically
associated with a derating factor.
ISD
Integrated servo drive, integrated servomotor solution.
ISD flange
This is the standard flange for ISD servo drives; larger than
the IEC flange.
ISD servomotor
Designates the ISD servomotor with hybrid cable.
Loop cable
Hybrid connection cable between two servo drives, with
two connectors.
M12 connector
Input connector for connecting the sensor on the B side of
the servo drive.
Motor shaft
Rotating shaft on the A side of the servomotor, typically
without a key groove.
Multi-turn encoder
Describes a digital absolute encoder, in which the absolute
position remains known after several revolutions.
Nodes
Nodes are branches within a cam disc function.
PELV
Low-voltage directive regarding voltage levels and
distances between lines.
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VLT ISD 410 Servomotor Operating Instructions
PDO
Process Data Object (see DS301).
Planetary gear
A specific type of gearing, typically used with servomotors.
Power-off principle
The brake is normally engaged. It is released by applying a
voltage (safety function).
Power supply module
The power supply module provides a regulated 300 V DC
from 400 V AC.
Radial force
The force in newton-metres acting at 90° to the
longitudinal direction of the rotor axis.
Resolver
A feedback device for servomotors, typically with two
analog tracks (sine and cosine).
Safety
A servomotor safety circuit that switches off the voltages
of the driver components for the IGBTs.
Scope
Used for diagnosis. Enables internal signals to be depicted.
SDO
Service Data Object (see DS301).
Segment
A segment refers to a movement within a curve.
SIL 2
Safety Integrated Level II.
Single-turn encoder
Describes a digital absolute encoder, in which the absolute
position for one revolution remains known.
Toolbox
A software tool used for parameter setting and diagnostics
of ISD servomotors, the ISD connection box and the ISD
encoder box.
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MG75D102 - VLT is a registered Danfoss trademark
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