Control Mode For Low Current; Detection Of Output Short Circuit - Toshiba TOSVERT VF-AS1 Instruction Manual

6.33.8 Control mode for low current

: Low current detection hysteresis width
: Low current trip selection
: Low current detection current
: Low current detection time
• Function
If the current is lower than
tripping is selected, enter the detection time to tripping. Trip information is displayed as "
= : No tripping (Failure signal FL deactivated).
A low current alarm can be put out by setting the output terminal function selection parameter.
= : The inverter will trip (the failure signal FL will be activated) if a current below the current set with
Title
Low current detection hysteresis width
Low current trip selection
Low current detection current
Low current detection time
<Example of operation>
Output terminal function: 26 (UC) Low current detection
=
Ex.) When outputting low current detection signals through output terminal OUT1
Title
Output terminal function selection 1(OUT1)
Note:To put out signals to the terminal OUT2, select the parameter
Low current
signal output
Output current [%]
When
After tripping, the low current signal remains ON.

6.33.9 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
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Note: When operating a high-speed motor, set
because a high-speed motor has a very low impedance.
level and passes for a time longer than
flows for the period of time specified with
Function
(No trip)
Function
+
= (tripping), the inverter will trip if low current lasts for the period of time set with
Function
, : 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.
.
Adjustment range
~ %
: No trip
:Trip
~ %
~ sec.
Adjustment range
~
.
less than
Adjustment range
: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)
to . Any other setting may cause the motor to malfunction,
F-57
E6581301
, the inverter trips. When
."
Default setting
Example of setting
ON
OFF
OFF
Time [sec]
Default setting
6
.