Danfoss VLT AQUA Operating Instructions Manual page 109

VLT AQUA Low Harmonic Drive Operating In-
structions
EXAMPLE 3:
Variable value= REFERENCE, range= Min ref - Max ref
Range needed for output= Min ref (0%) - Max ref (100%), 0-10 mA
Output signal 0 or 4 mA is needed at Min ref - set par. 6-51
Output signal 10 mA is needed at Max ref (100% of range) - set par. 6-52
(20 mA / 10 mA x 100%=200%).
6.3.9 Drive Closed Loop, 20-**
This parameter group is used for configuring the closed loop PID Controller, that controls the output frequency of the frequency converter.
20-12 Reference/Feedback Unit
Option:
[0] None
[1] * %
[5] PPM
[10] 1/min
[11] RPM
[12] Pulse/s
[20] l/s
[21] l/min
[22] l/h
[23] m 3 /s
[24] 3
m /min
[25] m 3 /h
Terminal 42 Output Min Scale to 0%
Terminal 42 Output Max Scale to 200%
Function:
®
MG.20.T1.02 - VLT is a registered Danfoss trademark
6 How to Programme the Low Harmonic Drive
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