Toshiba TOSVERT VF-MB1 - Time Limit for Lower-Limit Frequency Operation

E6581697
F-26
6
6.9 Time limit for lower-limit frequency operation
6.9.1 Time limit for lower-limit frequency operation
f256 : Time limit for lower-limit frequency operation
f391 : Hysteresis for lower-limit frequency operation
 Function
If operation is carried out continuously at a frequency below the lower-limit frequency (
) for the period
of time set with
, the inverter will automatically deceleration the motor to a stop. At that time,
“
” is displayed (alternately) on the operation panel.
This function will be canceled if a frequency command above the lower-limit frequency (
ll) f391
(Hz).
[Parameter setting]
Title Function Adjustment range Default setting
f256
Time limit for lower-limit frequency
operation
0.0: Disabled
0.1 - 600.0 (s)
0.0
f391
Hysteresis for lower-limit frequency
operation
0.0-
ul (Hz) 0.2
Note: This function is valid when doing forward/reverse switching.
When starting operation, does not operate until operation frequency reaches LL.
Output frequency [Hz]
+

Foward / reverse
Time [s]

ON
OFF
