NORDAC LINK (SK 250E-FDS ... SK 280E-FDS) – Users Manual for Frequency Inverters as Field Distributors
10
BU 0250 en-3021
Information
The device must not be opened
The device must not be opened at any time during its service life and does not need to be. All mounting,
installation and commissioning works as well as normal operation are only done on the closed device.
•
Assembly is done via freely accessible mounting holes.
•
Electrical connection is exclusively established via plug connectors.
•
Operational settings are made via parameter adjustments. Access for the connection of a parameterisation
tool, for example, is via a blind plug. This blind plug may only be removed for work in connection with
commissioning and must be properly replaced afterwards.
•
Diagnostic LEDs for displaying switching and operating states are externally visible.
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1.1 Overview
This manual describes all of the possible functions and equipment. The configuration and functionality
are limited according to the type of device.
Basic characteristics
• High starting torque and precise motor speed control setting by means of sensorless current vector
control
• Wall mounting close to the motor.
• Permissible ambient temperature -25 °C to 40 °C (please refer to the technical data)
• Integrated EMC mains filter for Class A limit values / Category C2
• Automatic measurement of the stator resistance and determination of the precise motor data
• Programmable direct current braking
• Built-in brake chopper for 4-quadrant operation, optional braking resistors (internal/external)
• Separate temperature sensor input (TF+/TF-)
a)
• Evaluation of an incremental encoder via digital inputs
a)
• NORD system bus for connecting additional modular assemblies
a)
• Four separate online switchable parameter sets
• Diagnostic LEDs (incl. signal status DIs/ DOs)
• RS232/RS485 interface via RJ12 port, alternatively via USB
• 24 V DC control voltage
– Must be provided via a plug connector, or
– Can be provided by the FI (only with option –HVS).
It is also possible to connect an external 24 V DC voltage supply via an optional plug connector
in order to supply a high power peripheral (e.g. actuator).
• Integrated "POSICON" positioning control (
• CANopen absolute value encoder evaluation via the NORD system bus
a)
• Operation of
three
-
phase current
as
ynchronous
m
otors
(ASM) and
P
ermanent
M
agnet
S
ynchronous
M
otors
(PMSM)
• Integrated PLC (
a)
Connection is only possible with optional plug connectors.
Summary of Contents for NORDAC LINK SK250E-FDS
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