SV-iS7 User Manual - Inverter Drive Supermarket

Chapter 10 Protective Functions
PRT-43 ETH Cont : sets the magnitude of the current at which the electronic thermal protective function becomes
active. Incessant operation is available without protection below the set value.
Continuously permitted current[%]
100
PRT-41=1
95
PRT-41=0
65
10.1.2 Overload warning and troubleshooting (Trip)
This function is for releasing an warning and troubleshooting when the motor is supplied with overload in comparison
with the rated current of the motor. You can set the current magnitude for the warning and troubleshooting.
Group Code No. Function Display Setting Display Setting Range Unit
PRT
OUT
04 Load Duty 1 Heavy Duty - -
17 OL Warn Select 1 Yes No/Yes -
18 OL Warn Level - 150 30~180 %
19 OL Warn Time - 10.0 0~30 sec
20 OL Trip Select 1 Free-Run - -
21 OL Trip Level - 180 30~200 %
22 OL Trip Time - 60.0 0~60.0 sec
31 Relay 1 -
32 Relay 2 5 Over Load
-
33 Q1 Define
PRT-04 Load Duty : Select a load classification
0 : Nomal Duty
Set VT (Variable Torque) loads such as fan or pump (Overload endurance : 1min at 110% of VT rated current)
1 : Heavy Duty
Set CT (Constant Torque) loads such as hoist or crane (Overload endurance : 1min at 150% CT rated current)
PRT-20 OL Trip Select : selects the inverter operation in case of an overload failure.
0 : None
No action is taken to protect from overload.
1 : Free-Run
Inverter output is blocked in case of an overload failure. The motor does free run.
2 : Dec
Decelerating stop in case of a failure.
Frequency[Hz]
20 60
PRT-42
PRT-43
Current[%]
60
-
Electronic thermal time(sec)
-
10-2