Omron SYSDRIVE 3G3FV User Manual page 257

Advanced Operation
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.
Output frequency
Upper limit
Lower limit
Forward/Stop
UP command
DOWN command
Speed Agree signal
(see note)
Power supply
Note The Speed Agree signal remains ON while the run command is ON and the motor is not accelerat-
ing or decelerating.
Fault Reset (Setting: 14)
OFF Normal operation
ON Resets faults when input goes from OFF to ON. (Normal operation when no fault has occurred.)
Accelerates to
lower limit
ON
ON
Reference frequency reset
ON
ON
ON
d4-01 = 1
Same frequency
d4-01 = 0
ON
Chapter 6
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