Feed cable
Hybrid connection cable between connection box and
servomotor, with a connector.
Feedback system
Feedback systems for servomotors in general.
Fieldbus
Communication bus between controller and servo axis; in
general between controller and field nodes.
Firmware
Software in the unit; runs on the control board.
Flash
Memory IC on the ISD control board; a form of EPROM.
Function block
Device functionalities are accessible via CoDeSys.
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
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 servomotors, with
two connectors.
M12 connector
Input connector for connecting the sensor on the B side of
the servomotor.
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.
NMT
Network Management
PELV
Low-voltage directive regarding voltage levels and
distances between lines.
PDO
Process Data Object (see CANopen 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 AC 400 V.
QEP
Quadrature Encoder Pulse
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 (STO)
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.
SD Card
Secure Digital Card for encoder box.
Appendix
VLT
®
ISD Connection Box Operating Instructions
MG75G102 - VLT
®
is a registered Danfoss trademark
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