Fronius IG-TL Serie Manual De Instrucciones página 63

0x9F - Set power Example for Remote Ctrl CMD ID 0x02:
reduction and
Query:
reactive power
(continued)
Start Length
Remote Ctrl Data
Values in the 'Remote Ctrl Data' byte:
Cos phi specified value Separator
Cos phi specified value: big endian | signed int | resolution: 1 LSB = 0.001 [-] | value
Change gradient:
Response:
Start Length
Remote Ctrl Data
-
-
The sign of the cos phi specified value defines whether the inverter behaves like an
over- or under-excited synchronous machine. The inverter always acts like a generator
regarding the flow direction of the active energy:
Cos phi specified value sign
Negative
Positive
Device / Option Number
variable 0x00 0x00
Inverter number
Remote Ctrl Data
0x7F
range – 999 to -850 and +850 to 1000
big endian | unsigned int | resolution: 1 LSB = Delta 0.001 [-] /
sec. | Value range 1-15000d (i.e., the max. range of cos (f)
= -0.85 to +0.85 in one period for a 50 Hz grid) /
Special value: 0xFFFF is defined as 'as fast as possible'
Device / Option Number
variable 0x00 0x00
Inverter number
The cos phi specified value indicates the power factor of the inverter while feeding
power into the grid.
The change gradient indicates the speed at which the inverter will change from the
present cos phi specified value to the new 'cos phi' specified value. The change
gradient can be used to avoid erratic changes between entered values.
Command Remote Ctrl CMD ID Separator
0x9F 0x02
Checksum
Change gradient Separator
0x7F
Command Remote Ctrl CMD ID Separator
0x9F 0x02
Checksum
Meaning
over-excited
under-excited
57
0x7F
Reserved
0x00
0x7F