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F-59
6.25.7 Action at low currents
Low-current trip
Low-current detection level
Low-current detection time
Disabled not trip(FL is not active)
Low-current alarm can be output by output terminal selection.
Enabled The inverter trips if low-current passes during operation for
the time set with
or over.(FL is active)
Title Function Adjustment range Default setting
Low-current trip : Disabled, : Enabled
Low-current detection level
[%]
Low-current detection time
[s]
6.25.8 Detection of output phase failure
Detection of output short-circuit during start-up
Adjustment of detection pulse for output short-circuit during start-up
Title Function Adjustment range Default setting
Detection of output short-
circuit during start-up
: Standard
: Only one time at power injection or at
first start after reset
Adjustment of detection pulse
for output short-circuit during
start-up
[ s]
: Standard detecting at starting
A check is made once at the first start of operation after the power is turned on or
the inverter is reset.
Set the pulse length for the detection of short circuits.
Note) Shorten the pulse length if the motor trips in error (OCL) at start-up, especially a high-speed motor.
6.25.9 Over-torque trip
Over-torque trip
Over-torque detection level during power running
Over-torque detection level during regeneration
Over-torque detection time
Function
If the current is lower than level and passes for a time longer than , the
inverter trips. When
is set at (tripping disabled), it is necessary to set, with
, the time elapsed before the inverter trips after the detection of a small current.
Function
If a torque current exceeding the current set with , is detected, the inverter
trips and the trip message is displayed.
Function
The function is to detect short circuits with inverter's output terminals.