Motion Control And Relay Cards; Brake Resistors - Danfoss VLT AutomationDrive FC 302 Design Manual

Options and Accessories Ove...
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2 safe programmable inputs.
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Safe LCP copy.
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Dynamic commissioning report.

6.3 Motion Control and Relay Cards

This section describes the motion control and relay card
options that are available with the VLT
FC 302 series. For ordering numbers, refer to
chapter 13.2 Ordering Numbers for Options and Accessories.
6.3.1 VLT ®
The MCO 305 option is an integrated programmable
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motion controller that adds extra functionality for VLT
AutomationDrive FC 302.
The MCO 305 option offers easy-to-use motion functions
combined with programmability – an ideal solution for
positioning and synchronizing applications.
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Synchronization (electronic shaft), positioning,
and electronic cam control.
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2 separate interfaces supporting both incremental
and absolute encoders.
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1 encoder output (virtual master function).
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10 digital inputs.
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8 digital outputs.
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Supports CANopen motion bus, encoders, and I/O
modules.
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Sends and receives data via fieldbus interface
(requires fieldbus option).
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PC software tools for debugging and commis-
sioning: Program and cam editor.
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Structured programming language with both
cyclic and event-driven execution.
6.3.2 VLT ®
MCO 350
The MCO 350 option for VLT
expands the functional properties of the AC drive in
synchronizing applications and replaces traditional
mechanical solutions.
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Speed synchronizing.
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Position (angle) synchronizing with or without
marker correction.
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On-line adjustable gear ratio.
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On-line adjustable position (angle) offset.
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Encoder output with virtual master function for
synchronization of multiple slaves.
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AutomationDrive
Motion Control Option MCO 305
Synchronizing Controller
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AutomationDrive FC 302
Danfoss A/S © 01/2018 All rights reserved.
VLT® AutomationDrive FC 302
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6.3.3 VLT
The MCO 351 option offers a host of user-friendly benefits
for positioning applications in many industries.
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6.3.4 VLT
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The VLT
outputs for increased flexibility.
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6.4 Brake Resistors

In applications where the motor is used as a brake, energy
is generated in the motor and sent back into the drive. If
the energy cannot be transported back to the motor, it
increases the voltage in the drive DC line. In applications
with frequent braking and/or high inertia loads, this
increase can lead to an overvoltage trip in the drive and,
finally, a shutdown. Brake resistors are used to dissipate
the excess energy resulting from the regenerative braking.
The resistor is selected based on its ohmic value, its power
dissipation rate, and its physical size. Danfoss offers a wide
variety of different resistors that are specially designed to
Danfoss drives. For ordering numbers and more
information on how to dimension brake resistors, refer to
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the VLT
Control via I/Os or fieldbus.
Home function.
Configuration and readout of status and data via
the LCP.
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Positioning Controller MCO 351
Relative positioning.
Absolute positioning.
Touch-probe positioning.
End-limit handling (software and hardware).
Control via I/Os or fieldbus.
Mechanical brake handling (programmable hold
delay).
Error handling.
Jog speed/manual operation.
Marker-related positioning.
Home function.
Configuration and readout of status and data via
the LCP.
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Extended Relay Card MCB 113
Extended Relay Card MCB 113 adds inputs/
7 digital inputs.
2 analog outputs.
4 SPDT relays.
Meets NAMUR recommendations.
Galvanic isolation capability.
Brake Resistor MCE 101 Design Guide.
MG38C202