69
No.
Item
Description of function
3 to 4
Acceleration/deceleration
time selection 1 to 2
By using the inputs of the acceleration/deceleration time selection 1 to 2, you can change the
acceleration/deceleration time during operation. (To use the s-pattern acceleration/
deceleration, you need to set the s-pattern acceleration/deceleration usage selection to ON
(d-06 = on).)
Acceleration/de
celeration
time selection 2
Acceleration/de
celeration
time selection 1
Acceleration/deceleration time to be selected
(including s-pattern acceleration/deceleration)
OFF
OFF
Standard (The acceleration/deceleration time selected in the
acceleration/deceleration time selection (d-00))
OFF
ON
Acceleration/deceleration time selection (2)
(Acceleration time (2) (5.Acc2), deceleration time (2) (6.dEc2),
s-pattern rise time (2) (d-11) to s-pattern deceleration reach
time (2) (d-14))
ON
OFF
Acceleration/deceleration time selection (3)
(Acceleration time (3) (d-02), deceleration time (3) (d-03))
ON
ON
Acceleration/deceleration time selection (4)
(Acceleration time (4) (d-04), deceleration time (4) (d-05))
5 to 6
Speed UP/DOWN
command
(MRH mode)
When the MRH_function_usage_selection (d-27) is set to "ON" and "1" (Terminal block) is
selected to the Speed_command_input_selection (b-10), acceleration or deceleration can be
controlled through an UP or DOWN command.
When frequency/speed exceeds its upper or lower limit, the inverter automatically accelerates
or decelerates until it reaches the upper or lower limit without an UP or DOWN command.
Specifying a negative value to the lower limit speed enables the inverter to operate in the
opposite direction.
Operation command
UP command
DOWN command
Motor speed
MRH lower limit
MRH upper limit
7
Speed/voltage
hold
When this signal is set to "ON" while VF66B (DC motor drive) is accelerating or decelerating, it
temporarily stops acceleration or deceleration and holds the speed at that time. When it is
changed to "OFF," VF66B (DC motor drive) will accelerate or decelerate again. (However, this
hold function is not available while VF66B (DC motor drive) is decelerating to stop with a stop
command.)
Operation command
Rotation speed/voltage hold
Motor speed/output
voltage
Rotation speed/voltage
command
8
Prohibition of s-pattern
acceleration/deceleration
Even when the inverter executes S-pattern acceleration or deceleration with the S-pattern
acceleration/deceleration usage selection set to "ON," setting this signal to "ON" will forcibly
prohibit the S-pattern acceleration/deceleration and return VF66B (DC motor drive) to normal
acceleration or deceleration.
