Danfoss VLT CDS 803, Руководство пользователя

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Speed
Time
Anti-reverse
protection
Illustration 6: Anti-reverse Protection
3.2.1.5 Oil Return Management
The oil return management (ORM) function helps retrieve oil trapped in the cooling system by ramping up periodically (oil boost
speed).
The ORM becomes active when the compressor has run below the ORM minimum speed limit for a given time defined by ORM
running time.
When ORM is active, the speed increases to a predefined ORM boost speed for a given time defined by ORM boost time
Additional a fixed boost interval timer shall trigger the ORM function in case no ORM has run within the defined ORM interval.
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ORM boost speed
ORM boost time
ORM Min
speed limit
Decrease ORM
timer
Increase ORM
timer
Increase ORM
timer
ORM low speed running time expire
ORM timer reset
ORM low speed running time starts Time
Illustration 7: Oil Return Management
3.2.1.6 Data Readouts and Commissioning
The VLT® Motion Control Tool MCT 10 supports the VLT® Compressor Drive CDS 803. The MCT is an efficient tool, for example for
readouts and commissioning.
VLT® Motion Control Tool MCT 10 supports the following readouts:
Readouts of alarms, warnings, and fault log in 1 view.
Compare a saved project with an online drive.
Scope & logging: Easy problem analysis.
Offline commissioning.
Save/send/mail projects anywhere.
Multiple drives in project file. Enables the service organization to be more efficient.
Compressor readout of frequency in RPS.
AJ330233902305en-000201 / 130R0596 | 15 Danfoss A/S © 2021.05
Product Overview
VLT® Compressor Drive CDS 803
Design Guide