C300 Transmission protocol for C300 firmware 5.x.x
C300B transmission protocol 2017-06-12.doc
10/22
Function
Harmonics
– switching ON/OFF
Command
HR_<U1>,<U2>,<U3>,<I1>,<I2>,<I3>[CR][LF]
Description
Switching between pure sinusoidal signal (harmonics OFF) and signal with programmed
harmonics (harmonics ON); the switching will be made immediately.
Parameter(s)
<Ux> = 0
harmonics in channel Ux are OFF;
<Ux> = 1
harmonics in channel Ux are ON;
<Ix> = 0
harmonics in channel Ix are OFF;
<Ix> = 1
harmonics in channel Ix are ON;
Example(s)
HR_1,1,1,1,1,1[CR][LF]
(harmonics in all channels are ON)
HR_1,1,1,0,0,0[CR][LF]
(harmonics in U1,2,3 channels are ON, harmonics in I1,2,3 channels are OFF)
HR_0,0,0,1,1,1[CR][LF]
(harmonics in U1,2,3 channels are OFF, harmonics in I1,2,3 channels are ON)
Example answer
OK[CR][LF]
4.2.Setting interharmonics
Function
Setting
interharmonic’s amplitude in voltage channels
Command
INTERHARMA_<A1><A2><A3>[CR][LF]
Description
Setting amplitudes of interharmonics in voltage channels. Expressed as percent of first
harmonic.
!!! Command used in firmware 4.0.0 or newer !!!
Parameter(s)
<A1><A2><A3>
Values of amplitude of interharmonics (real numbers). Setting range is
presented in
Table 2.1
in
C300 user manual
Example(s)
INTERHARMA_30.0,10.0,20.0[CR][LF]
(30% of U1 amplitude, 10% of U2, 20% of U3)
Example answer
OK[CR][LF]
Function
Setting
interharmonic’s phase angle in voltage channels
Command
INTERHARMP_<P1><P2><P3>[CR][LF]
Description
Setting phase angle of interharmonics in voltage channels. Expressed in degrees.
!!! Command used in firmware 4.0.0 or newer !!!
Parameter(s)
<P1><P2><P3>
Values of phase angles of interharmonics (real numbers). Setting range is
presented in
Table 2.1
in
C300 user manual
Example(s)
INTERHARMP_60.0,15.0,45.0[CR][LF]
(60
°, 15°, 45°)
Example answer
OK[CR][LF]
Function
Setting in
terharmonic’s frequencies in voltage channels
Command
INTERHARMF_<A1><A2><A3>[CR][LF]
Description
Setting frequencies of interharmonics in voltage channels. Expressed in Hz.
!!! Command used in firmware 4.0.0 or newer !!!
Parameter(s)
<F1><F2><F3>
Values of frequencies of interharmonics (natural number). Setting range is
presented in
Table 2.1
in
C300 user manual
Example(s)
INTERHARMA_113,78,300[CR][LF]
(133Hz, 78Hz, 300Hz)
Example answer
OK[CR][LF]
START
Set interharmonics
amplitude
INTERHARMA_
Set interharmonics
phase angle
INTERHARMP_
Set interharmonics
frequencies
INTERHARMF_
Set interharmonics
scaling factor
INTERHARMSF_
Switch interharmonic ON in
configured channel
INTERHARM_
