Protection Functions; Setting Of Stall Prevention Level; Inverter Trip Record Retention - Toshiba TOSVERT VF-PS1 Instruction Manual

6.26

Protection functions

6.26.1 Setting of stall prevention level

: Stall prevention level
• Do not set the stall prevention level (
If the stall prevention level parameter (
preventive function will be always active and increase the frequency when it judges that regenerative
Prohibited braking is taking place.
Do not set the stall prevention level parameter (
• Function
This parameter reduces the output frequency by activating a current stall prevention function against a
current exceeding the
[Parameter setting]
Title
Stall prevention level
[Display during the alarm
During an alarm status, (that is, when there is a current flow in excess of the stall prevention level), the output
frequency changes. At the same time, to the left of this value, " " is displayed flashing on and off.
Example of display

6.26.2 Inverter trip record retention

: Inverter trip record retention selection
• Function
If the inverter trips, this parameter will retain the corresponding trip information. Trip information that has
thus been stored into memory can be displayed, even after power has been reset.
[Parameter setting]
Title
Inverter trip record retention selection
Up to four sets of latest trip records displayed in status monitor mode can be stored into memory.
Data (current, voltage, etc.) displayed in status monitor mode when the inverter is tripped is cleared when power
is turned off.
Flow of operation when
Inverter trip
Caution
) extremely low.
-specified level.
Function
]
Function
=
Operation panel
(terminal) reset
Power supply reset
F-47
) is set at or below the no-load current of the motor, the stall
) below 30% under normal use conditions.
Adjustment range
~ %, :Deactivated
Adjustment range
:Clear when power is turned off.
:Retain even after power is turned off.
Retention of failure
records is also canceled.
Turn on power again
Fault display
FL not active
If the cause of tripping or that of
another failure is not yet removed.
E6581386
Default setting
Default setting
Ready for normal
operation
Trip again
Fault display
FL active
6