Action At Low Currents; Detection Of Output Phase Failure; Over-Torque Trip - Toshiba TOSVERT VF-P7 Instruction Manual

6.25.7 Action at low currents

 ：Low-current trip
 ：Low-current detection level
 ：Low-current detection time
・Function
If the current is lower than
inverter trips. When
, the time elapsed before the inverter trips after the detection of a small current.

＝：Disabled・・・・・not trip(FL is not active)
＝：Enabled・・・・・The inverter trips if low-current passes during operation for
Title
Low-current trip

Low-current detection level

Low-current detection time


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
・Function
The function is to detect short circuits with inverter's output terminals.
Title
Detection of output short-

circuit during start-up
Adjustment of detection pulse

for output short-circuit during
start-up
 ・・・ : Standard―――detecting at starting
 ・・・
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 a torque current exceeding the current set with
trips and the trip message

is set at (tripping disabled), it is necessary to set, with

Low-current alarm can be output by output terminal selection.
Function
Function
：
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.

level and passes for a time longer than
the time set with

Adjustment range
: Disabled, : Enabled
∼ [%]
∼ [s]
Adjustment range
: Standard
: Only one time at power injection or at
first start after reset
∼ [μs]
, 
is displayed.
F-58

or over.(FL is active)
Default setting
Default setting
is detected, the inverter
, the




