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• When
the up/down function is being
used, the output frequency will be accelerated to the lower limit if a
run command is input.
• When
the up/down function and jog frequency reference are both
assigned to multi-function inputs, an
ON jog frequency reference input has the highest priority.
• Multi-step References 1 through 8 are all disabled when the up/down function has been set.
• The output frequency held by the up/down function will be stored in memory if d4-01 (the frequen-
cy reference hold function selector) is set to 1.
This output frequency will be retained even after a power interruption, and operation will be re-
started at this frequency the next time that a run command is input. The stored output frequency
will be cleared from memory if the UP or DOWN command is turned ON while the run command is
OFF.
Note Select
and set one of the following functions for multi-function input. Do not set more than one of
them, otherwise a setting error (OPE3) will result.
S Acceleration/Deceleration Ramp Hold (Setting: A)
S UP and DOWN Commands (Settings: 10 and 11)
S Trim Control Increase and Decrease (Settings: 1C and 1D)
S Analog Frequency Reference Sample/Hold (Setting: 1E)
• The operation of the up/down function is shown in the following timing chart.
Forward/Stop
Speed Agree signal
(see note)
Output frequency
UP command
Upper limit
DOWN command
Lower limit
Power supply
Accelerates to
lower limit
Same frequency
ON ON
ON
ON
ON
ON
d4-01 = 1
d4-01 = 0
Reference frequency reset
Note The
Speed Agree signal remains ON while the run command is ON and the motor is not accelerat
-
ing or decelerating.
D Fault Reset (Setting: 14)
OFF Normal operation
ON Resets faults when input goes from OFF to ON. (Normal operation when no fault has occurred.)
Advanced Operation Chapter
6
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