How to Control the Adjustable Frequency Drive

Reference Handling

Select the adjustable frequency drive configuration mode in par.1-00 Configuration Mode.

[0]Open-loop

[3]Closed-loop

Open-loop

For open-loop operation, the reference represents the desired output speed of the adjustable frequency drive. The speed reference value:

Closed-loop

For closed-loop operation, the reference represents the setpoint.

NOTE

In closed-loop operation, par.3-02 Minimum Reference and par.4-12 Motor Speed Low Limit [Hz] must be set to 0 Hz. Set the par.4-14 Motor Speed High Limit [Hz] to a value greater than the setting in par.3-03 Maximum Reference.

TR200 BACnet

5-1

Page 26
Image 26
Trane TR200 instruction manual How to Control the Adjustable Frequency Drive, Reference Handling, Open-loop, Closed-loop