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VFD-F Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-32
This parameter selects the Over-torque Detection operation.
If this parameter is set to 01 or 02, over-torque detection will not occur during acceleration.
06 - 04 Over-torque Detection Level
Factory Setting: 110
Settings 30~150% Unit: 1
This parameter sets the Over-torque Detection level based on the AC drive rated current.
06 - 05 Over-torque Detection Time
Factory Setting: 0.1
Settings 0.1~60.0 Sec Unit: 0.1
This parameter selects the allowable time of Over-torque Detection before the AC drive
faults with an OL2.
When the output current exceeds Pr.06-04 for the time set in Pr06-05, AC drive will fault
and display “OL2” on the keypad.
06 - 06 Electronic Thermal Relay Selection
Factory Setting: 02
Settings
00: Operation disabled.
01: Operation with a standard motor (shaft mounted fan cooled).
02: Operation with a vector motor (non-fan cooled or self powered fan)
This parameter provides electronic thermal protection for the motor. When the output
current exceeds Pr.07-02 for the time set in Pr.06-07, the drive will fault with an OL1.
06 - 07 Electronic Thermal Characteristic
Factory Setting: 60
Settings 30~600 Sec Unit: 1
This parameter selects the time required for the electronic thermal protection function to
activate.
When Pr.6-06 is set for 1 or 2 and the output current exceeds Pr.7-02 for the time set in
Pr.6-07, the drive will fault with an OL1.
The common electronic thermal reaction time (150% output current for 1 minute) is shown
in the chart below. The actual reaction time will vary depending on output current.