Cumulative Operation Time Alarm Setting; Abnormal Speed Detection - Toshiba Tosvert VF-AS1 Instruction Manual

The cooling fan automatically operates whenever the ambient temperature is high, even when the inverter is out of
operation.
Title


6.33.12 Cumulative operation time alarm setting

 : Cumulative operation time alarm setting
• Function
This parameter is to make a setting so that the inverter puts out a signal when its cumulative operation time
has reached the time set with .
* Indication of  represents 10 hours. Ex.: If  is displayed, the cumulative operation time is 3850 hours.
Title

 Setting of output signal
Ex.) When assigning the cumulative operation alarm signal output function to the OUT2 terminal
Title


6.33.13 Abnormal speed detection

6
 : Abnormal speed detection time
 : Overspeed detection frequency upper band
 : Overspeed detection frequency lower band
• Function
When use at speed control mode with sensor (=, ), it always monitors the rotational speed of the
motor, even when the motor is at rest, and if the speed remains out of the specified limits for the specified
length of time, it outputs an error signal.
When use at speed control mode without sensor (=~), it always monitors the estimated rotational
speed of the motor.
Title



Output frequency [Hz]
Note 1: This function doesn't operate at the time of a torque control.
Note 2: It is advisable to set the parameter  (Acceleration/deceleration operation after torque limit) to  when
this function is set.
Function
Cooling fan control selection
Function
Cumulative operation time alarm setting
Function
Output terminal function selection 2 (OUT2)
Function
Abnormal speed detection time
Overspeed detection frequency upper band
Overspeed detection frequency lower band
0

Adjustment range
:Auto, :Always ON
Adjustment range
~
Adjustment range
~
Adjustment range
~ sec.
: Disabled, ~  H z
: Disabled, ~  H z
Output frequency
 trip

F-64
E6581442
Default setting

Default setting

Setting value
 (Negative logic )
Default setting





Time [s]