Lvrt Control - ABB PVS800 Handbuch

7
Inverter control program parameters
No. Name/Value

40 LVRT CONTROL

40.01 LVRT MODE
OFF
MAX RMS VOLT
MIN RMS VOLT
POS SEQ VOLT
40.02 NAMU BOARD
ENABLE
OFF
ON
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FbEq Description
Parameters related to the low voltage ride-through function.
Note: Group 40 is write-protected. It can be write-enabled by giving
a password with parameter
LVRT MODE and
protected when the PVS800 is running.
Operation mode selection for the low voltage ride-through function.
Selection between phase and main voltages can be set in
parameter 40.24 RMS VOLTAGE
Note: Perform the following checks before enabling the LVRT
function:
• Check that the mains voltage measurement is OK (signal
MAINS VOLTAGE).
• Check that the RT area parameters are set correctly, see the
figure of parameter
• Check the settings for the grid support mode (parameter
GRID SUPPORT
0 Low voltage ride-trough function is disabled.
1 Input for the LVRT function is the highest RMS AC voltage, either
phase or main.
2 Input for the LVRT function is the lowest RMS AC voltage, either
phase or main.
3 Input for the LVRT function is the positive sequence of the AC
voltage.
Enables the NAMU grid voltage measuring board. If the signal
01.11 MAINS VOLTAGE
board is not blinking, the communication between the NAMU board
and the inverter control unit is OK. If the communication fails, the
fault CH2 COM LOST (7520)
Note: The line side ID run must be done without the NAMU board,
therefore set parameter 40.02 NAMU BOARD ENABLE to OFF
during the ID run and after a successful ID run (the PVS800 goes
into the MPPT state), set parameter 40.02 to ON again.
Note: When parameter 40.02 NAMU BOARD ENABLE is set to
OFF, the following parameters are also disabled:
• 40.01 LVRT MODE
• 40.24 RMS VOLTAGE CALC
0 Communication to the NAMU board is disabled.
1 Communication to the NAMU board is enabled.
16.03 PASS CODE. Parameters
40.02 NAMU BOARD ENABLE
CALC.
40.10 RT U/Un LEVEL1.
MODE).
is correct or the fault LED on the NAMU
appears.
(OFF)
(OFF).
Def.
40.01
are write-
OFF
01.11
41.01
OFF
T
I
B