Detection Of Output Short Circuit; Overtorque Trip - Toshiba TOSVERT VF-PS1 Instruction Manual

Low current
signal output
Output current [%]
When
After tripping, the low current signal remains ON.

6.26.8 Detection of output short circuit

: Selection of short circuit detection at starting
• Function
Detects a short-circuit on the output side of the inverter.
Title
Selection of short circuit
detection at starting
·················
Note: If the input voltage is rather high (480V as a guide) or the inverter is used to operate a high-speed motor, set
to or
very low impedance. If the inverter malfunctions for reasons of impedance even though
then set to

6.26.9 Overtorque trip

: Overtorque trip selection
: Overtorque detection level during power running
: Overtorque detection level during regenerative braking
: Overtorque detection time
: Overtorque detection hysteresis
Function
Trips the inverter or issues an alarm if the total time for which torque is above the level set with
/ reaches the time set with
= (No trip) ··············· No tripping (FL is not active).
= (Tripping) ············ The inverter will trip (the failure signal FL will be activated) if a torque larger than
Title
Overtorque trip selection
Overtorque detection level during power running
Overtorque detection level during regenerative braking
Overtorque detection time
Overtorque detection hysteresis
Note: Using the output terminal function selection parameter, the inverter can be set so that it outputs overtorque
detection signals regardless of the setting of
+
= (tripping), the inverter will trip if low current lasts for the period of time set with
Function
:Each time (standard pulse)
:Only one time after power is turned on
:Each time (short pulse)
:Only one time after power is turn on (short pulse)
:Each time (Extremely shot-time pulse)
:Only one time after power is turn on (Extremely
shot-time pulse)
, , : 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.
. Any other setting may cause the motor to malfunction, because a high-speed motor has a
or .
(during power running) or
longer than the time set with
Function
F-51
OFF
less than
Time [sec]
Adjustment range
Trip information is displayed as "
(during regeneration) passes for a time
.
Adjustment range
:No trip
:Trip
~ %
~ %
~
~ %
. ⇒ Refer to Section 7.2.2.
E6581386
ON
OFF
.
Default setting
is set to or ,
"
Default setting
sec.
6