LSIS 6731001500, User Manual

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Learning Protection Features
Code Description
PRT-26
UL Warn Time A protect function operates when under load level condition explained above
maintains for the warning time set.
PRT-27
UL Trip Sel
Sets the inverter operation mode for situations when an under load trip occurs. If
set to ‘1 (Free-Run)’, the output is blocked in an under load fault trip event. If set to
‘2 (Dec)’, the motor decelerates and stops when an under load trip occurs.
PRT-28
UL Trip Time A protect function operates when under load level conditions explained above
maintain for the trip time set.
To operate under load trip properly, a load tuning (AP2-01 Load Tune) must be performed in advance.
If you cannot perform a load tuning, manually set the load fit frequencies (AP2-02 Load Fit Lfreq–AP2-
10 Load Fit Hfreq). The Under Load protection does not operate while the Energy Save function is in
operation.
6.3.1 Fan Fault Detection
Group Code Name LCD Display Parameter Setting Setting range Unit
PRT 79
Cooling fan fault
selection
Fan Trip Mode 0 Trip
OUT 31–35
Multi-function relay
1–5
Relay 1–5
8
Fan
Warning
-
OUT 36
Multi-function
output 1
Q1 Define
* With a capacity of 110 kW or more, failure mode of internal fan is selected by selection of PRT-97.
Fan Fault Detection Setting Details
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.