Present Output Frequency; Example 1: For Controlling The Drive And Reading Parameters - Danfoss FC 300 Design Manual

FC 300 Design Guide

Present Output Frequency

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The value of the adjustable frequency drive's
present output frequency is transferred as a
16-bit word. The value is transferred as whole
numbers 0 - ±32767 (±200%).
16384 (4000 Hex) corresponds to 100%.
Output frequency has this format:
0-16384 (4000 Hex)
Speed Low Limit - par. 4-14 Motor Speed High Limit).
Example - Status word and current output frequency:
The adjustable frequency drive informs the
master that the current output frequency is
50% of the output frequency range.
Par. 4-12Motor speed low limit = 0 Hz
Par. 4-14Motor speed high limit = 50 Hz
Status word = 0F03 Hex.
Output frequency= 2000 Hex => 50% of the
frequency range, corresponding to 25 Hz.
Example 1: For Controlling the Drive
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and Reading Parameters
This telegram reads par. 16-14 Motor Current.
Telegram to the adjustable frequency drive:
stx lge adr
02 0E 01
All numbers are in hex format.
The response from the adjustable frequency drive corresponds to the command above but pwe,high
and pwe,low contain the actual value of par. 16-14 multiplied by 100. If the actual output current
is 5.24 A, the value from the adjustable frequency drive is 524.
default setting ( ) display text
*
288
How to Program
0-100% (Par. 4-12 Motor
pke ind
6 4E 00 00
[ ] value for use in communication via serial communication port
MG.33.B6.22 - VLT is a registered Danfoss trademark
pwe, high pwe, low
00 00 00 00
pcd 1 pcd 2
00 00 00 00
bcc
45