Fronius IG-TL Serie Manual De Instrucciones página 64

0x9F - Set power Example for Remote Ctrl CMD ID 0x03:
reduction and
Query:
reactive power
(continued)
Start Length
Remote Ctrl Data
Values in the 'Remote Ctrl Data' byte:
Q
Change gradient:
Response:
Start Length
Remote Ctrl Data
-
-
-
The sign of the Q
under-excited synchronous machine. The inverter always acts like a generator regarding
the flow direction of the active energy:
Sign of
Negative
Positive
Device / Option Number Command Remote Ctrl CMD ID Separator
variable 0x00
Inverter number
Q specified value Change gradient
rel
specified value:
rel
Device / Option Number Command Remote Ctrl CMD ID Separator
variable 0x00
Inverter number
The Q specified value indicates the reactive power available from the inverter
rel
while feeding power into the grid as a relative value in relation to the maximum
possible reactive power.
A Q specified value of 0% means live operation while feeding power into the grid
rel
(reactive components may occur due to the integrated EMI filter if filter compensati-
on is not activated).
The change gradient indicates the speed at which the inverter will change from the
present Q specified value to the new Q
rel
be used to avoid erratic changes between entered values.
specified value defines whether the inverter behaves like an over- or
rel
specified value
Q
rel
0x00 0x9F 0x03
Checksum
Remote Ctrl Data
Separator Reserved
0x7F 0x00
big endian | signed char | resolution: 1 LSB = 1 [%] |
Value range +/- 100d
big endian | unsigned char | resolution: 1 LSB = Delta 1
[%] / sec.| Value range 1-200d (i.e., the max. range of -
100% to +100% in one second) /
Special value: 0xFF is defined as 'as fast as possible'
0x00 0x9F 0x03
Checksum
specified value. The change gradient can
rel
Meaning
over-excited
under-excited
58
0x7F
Reserved Separator Reserved
0x00 0x7F 0x00
0x7F