3-57
*1 When the parameter Sn-05= 0, the reference command is input by the setting of An-01.
Instead, when the parameter Sn-05= 1, the reference command is input from analog
command through the terminal VIN and AIN.
*2 If the parameter Sn-29= 0, the auxiliary frequency (the 2nd step frequency setting: AUX
frequency) is input from the AUX terminal. If the parameter Sn-29
≠
0, the 2nd step
frequency setting is determined by the parameter of An-02.
•
Acceleration Time And Deceleration Time Change (Setting : 07)
•
The acceleration time and deceleration time can be changed through the control
circuit terminal
g
~
j
as described on page 3-4.
•
External Baseblock (A Contact) (Setting : 08)
•
External Baseblock (B Contact) (Setting : 09)
•
With either of these settings, the multi-function input terminal controls its
inverter baseblock operation.
•
During running: As an external baseblock signal is detected, the digital operator
will display a “B.B. Alarm”. Then, the inverter output is blocked. After the
baseblock signal is cleared, the motor will resume running according to its then
reference signal.
•
During deceleration : An external baseblock signal is input, the digital operator
will display “ B.B. Alarm”, the inverter is blocked from output and the output
frequency will drop to zero. The motor will then coast to stop freely. After this
external baseblock signal is cleared, the inverter will stay in stop mode.
•
Acceleration and Deceleration Ramp Hold
(Setting : 10)
•
With this setting, the signal of Acceleration/deceleration ramp hold (input from
the multi-function input terminals) will pause the Acceleration/deceleration of
motor and maintain the then output frequency. The motor will coast to stop if an
OFF command is input while the acceleration / deceleration ramp hold input is
ON, the then output frequency will be memorized and the command of
Acceleration/deceleration ramp hold is released.
FWD/
REV
ACC/DEC
prohibitation
frequency
command
OFF
ON
output
frqquency
HOLD
HOLD
ON
ON
ON
OFF
OFF
OFF
Fig. 41.
Acceleration and deceleration ramp hold
