RU , GSE, FOTO CONTROL, QUATROFREM v.2.53x
15. apríla 2019
Page 37 from 97
Name [ID]
Description
Def.
longer than set by Filter of eff. decrease [867] (page 37), inverter generates the warning
W34-Efficiency decrease (page 30).
fault
If Inv. efficiency [859] (page 15) drops below Min. efficiency [866] (page 37) for the time
longer than set by Filter of eff. decrease [867] (page 37), inverter generates a fault E47-
Efficiency decrease (page 34).
Min. efficiency
[866]
If Inv. efficiency [859] (page 15) drops below this value, inverter generates a
warning or a fault, according to Efficiency decrease [865] (page 36).
50.00
%
0.00 % ÷ 100.00
%
Filter of eff.
decrease [867]
Time, during which the efficiency has to be decreased, to generate a fault E48-DC
leakage (page 34)
10.0 s
0.0 s ÷ 3000.0 s It serves to filter short-term transients during the start-up of the inverter.
7.2 INVERTER PARAMETERS
Group of parameters number [197]
Operating parameters of the inverter.
MENU \ SETTINGS \ INVERTER PARAMETERS
Name [ID]
Description
Def.
Nom.
power
[291]
Nominal power of the inverter.
15000 W
1 W ÷ 200000 W
Nom. freq. [292]
Nominal frequency of the supply grid, inverter is connected to.
50.0 Hz
1.0 Hz ÷ 1000.0
Hz
Nominal frequency is used to determine base values for synchronization and fault values
for frequency check Underfrequency [629] (page 74) and Overfrequency [628] (page 74)
Switching
frequency [6]
Switching frequency of the PWM modulation on grid-side.
7000 Hz
2000 ÷ 10000
The value of the sampling frequency is set according to multiple criteria. A higher value
causes high switching losses. Values close to the resonant frequency of the passive LCL
filter causes high losses from current distortions in the LCL filter and control instability.
Therefore, it is always necessary to choose a trade-off between high and low frequency.
Permanent
current [441]
The current threshold for a long-term (permanent) inverter load. The value
represents the ratio between permanent current and the nominal current of
the inverter.
1.000
0.500 ÷ Over.
ac
9
9
Refer to chapter 3.3
(str. 14) by product type.
Phase
order
L1,L2,L3 [355]
Setting the order of the phases on the output of the inverter. If the phase
order is incorrect, fault E21-Synch. error (page 32) is generated.
If the phase order is incorrect, fault E21-Synch. error (page 32) is generated.
After change of this parameter, this fault should vanish.
Direct
Direct
Inverter expects direct order of input phases (L1-L2-L3).
Inverted
Inverter expects inverted order of input phases (L1-L3-L2).
Initialization
time [981]
This time extends the initialization time. During the initialization time, start is
not possible and the faults are not evaluated. Parameter serves for delaying
the response time for slower control systems.
0 s
0 s ÷ 3600 s
Password [529]
Setting the user password for access to the device settings. Password needs
to be entered when entering the inverter settings.
****
**** ÷ ****
Protects the inverter settings against reconfiguration by unauthorized persons.
DST Time shift
[753]
Determines whether the time of the inverter is only in the normal time, or it is
changed when needed to normal or daylight saving time.
DST
automatic
change
No DST | DST automatic change
Inverter
unblocking
[888]
Parameter for entering the password to unlock the inverter from the trial
period mode to operation mode. For unblocking the inverter, please contact
the supplier of inverter or device in which the inverter is used, and ask for the
****
