Toshiba TOSVERT VF-MB1 Instruction Manual page 5

■ Relationship between traverse reference frequency and output frequency limit
The relationship between the traverse reference frequency and the output frequency limit is described.
The output signals of lower limit frequency, the upper limit frequency and the low-speed detection during
traverse operation are effective to the traverse reference frequency.
Traverse reference frequency : Between
Output frequency
■ Setting parameters of the control terminal
Set the following parameter to carry out traverse operation.
1. Set  to 1 (traverse operation: Enabled).
2. Assign the function No. 134 / 135 [inverse] (traverse permission signal) to an input terminal.
When the terminal is turned on, traverse operation starts.
If you don't use external input signal, set
Input terminal selection parameter; f111 to f116, f151 to f156
Example: Assign the traverse permission signal to the S3 terminal
Title
Note: If the traverse function is turned off during traverse operation using a parameter or by the signal
from the control terminal, the operation mode changes from traverse operation to constant speed
operation according to the acceleration/deceleration time setting (see Fig. 4).
Output frequency (Hz)
Rreference
frequency
RUN command
Traverse permission
(S3-CC)
or (maximum frequency), whichever is lower.
: Frequency between
limit frequency) or
Function
Input terminal selection 6 (S3)
ON
Fig. 4 Timing when the traverse function is off
(lower limit frequency) and
(Starting frequency setting) and
(maximum frequency), whichever is lower.
(always active function selection 1) to 134.
Adjustment range
~
During operation
OFF
4
E6581750
(upper limit frequency)
(upper
Example of setting
(Traverse permission signal)
Time (sec.)
ON