Veichi SI21 - Page 26

SI21 Solar Pump VFD Manual
24
F10.16(0x0A1
0)
Bus
undervoltage
suppression
V/F SVC
When the bus voltage is lower than the
undervoltage suppression point, the
operating frequency is automatically
adjusted to suppress the bus voltage from
decreasing, preventing the undervoltage
fault.
0: Off 1: On
0
(0～1)
F10.17(0x0A11
)
Bus
undervoltage
suppression
point
V/F SVC
Set bus voltage value for trigger
undervoltage suppression function
D5: 430
S2: 240
(D5: 350～450
S2: 180～260)
Also subject to
overvoltage
limit
D5
overvoltag
epoint:
820V
(750～
840)
S2
overvoltag
epoint
400V
(360～
410)
F10.18(0x0A1
2)
Bus
undervoltage
suppression
gain
V/F SVC
Set the response effect of undervoltage
suppression
100.0%
(0.0%～
500.0%)
F10.19(0x0A1
3)
Bus
undervoltage
protection
point
V/F SVC
The lower limit voltage allowed by the set
bus voltage. Below this value, the VFD
reports an undervoltage fault.
D5: 320
S2: 190
(D5: 300～400
S2: 160～240)
Also subject to
overvoltage
limit
D5
overvoltag
epoint:
820V
(750～
840)
S2
overvoltag
epoint
400V
(360～
410)
F10.20(0x0A1
4)
Input and
output phase
loss protection
options
V/F SVC
Set whether the input and output phase loss
protection functions are enabled.
LED "0" digit: Output phase loss
protection
0: Off 1: On
021
(000～121)