LSIS LSLV0055H100-4COFN - Low Voltage Fault Trip

337
Learning Protection Features
Code
Description
PRT-79 Fan Trip
Mode
Set the cooling fan fault mode.
Setting
Function
0
Trip
The inverter output is blocked and the fan trip is
displayed when a cooling fan error is detected.
1
Warning
When OUT-36 (Q1 Define) and OUT-31–35
(Relay1–5) are set to ‗8 (FAN Warning)‘, the fan
error signal is output and the operation
continues.
OUT-36 Q1 Define,
OUT-31–35 Relay1–
5
When the code value is set to ‗8 (FAN Warning)‘, the fan error signal is
output and operation continues. However, when the inverter‘s inside
temperature rises above a certain level, output is blocked due to
activation of overheat protection.
6.3.2 Low Voltage Fault Trip
When inverter input power is lost and the internal DC link voltage drops below a certain
voltage level, the inverter stops output and a low voltage trip occurs.
Group
Code
Name
LCD Display
Parameter Setting
Setting
range
Unit
PRT
81
Low voltage trip
decision delay
time
LVT Delay
0.0
0–60.0
sec
OUT
31–35
Multi-function relay
1–5
Relay 1–5
11
Low
Voltage
-
36
Multi-function
output 1
Q1 Define
Low Voltage Fault Trip Setting Details
Code
Description
PRT-81 LVT
Delay
If the code value is set to ‗11 (Low Voltage)‘, the inverter stops the output
first when a low voltage trip condition occurs, then a fault trip occurs after the
low voltage trip decision time elapses. The warning signal for a low voltage
fault trip can be provided using the multi-function output or a relay. However,
the low voltage trip delay time (LVT Delay time) does not apply to warning
signals.