LS ELECTRIC LSLV-H100 Series, User Manual

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205
Learning Advanced Features
Code Description
PRT-96 LDT Rst
Cnt
PRT-97 LDT Rst
Cnt M
PRT-98 LDT Cnt
Clr T
When the LDT trip occurs, the number of automatic restart is set by PRT-
96.
If an LDT trip occurs, the inverter automatically restarts after the time set
in PRT-77 (LDT Restart DT) has elapsed. The PRT-97 is incremented by
1 each time it is automatically restarted.
When the value of PRT-97 becomes equal to PRT-96, it does not try to
restart automatically.
The LDT trip will be restarted within the time set in PRT-98 after auto
restart
If not, PRT-97 is initialized to 0.
OUT-31
–35
Relay 1
–5
Sets one of the output relays to ‘32 (LDT)’ to monitor the level detection
status.
<An example of PRT-71 set to (1: Above Level )>
As shown in the figure above, level detection can be carried out (relay output is
‘on’) as the
output frequency is above PRT-76 and the detection value is greater than the value of PRT-
74.
The LDT operation is released if the value is less than the value subtracted from the value of
band of, when the value of the feedback is set from PRT-74 to PRT-75.
•
The LDT operation is carried out if the inverter operation is above PRT-74.
•
Modify PRT-74 and PRT-75 appropriately when modifying LDT Source of PRT-71.
•
PRT-74 and PRT-75 become default value if the LDT Source is modified.
•
PRT-77 (Restart DT) and PRT-08 (RST restart) features operate separately.
•
The inverter waits until the delay time set at PRT-73 (LDT Dly Time) before it operates
based on the setting in LDT-70 when the level detection time condition is met.