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F-11
6
6.5 Frequency priority selection
6.5.1 Using a frequency command according to the particular
situation
: Frequency setting mode selection
: Frequency priority selection
• Function
Use the above parameters to select the command to be used for frequency setting, and to assign
priority to one of the two types of input frequency reference signals.
• Combination of the and parameters
• Switching via terminal board input
■ Parameter setting
Title Function Adjustment range Default setting
Frequency setting mode selection
0: Terminal board
1: Operation panel
2: Internal potentiometer
2
■ Parameter setting
Title Function Adjustment range Default setting
Frequency priority selection
0: VIA/II, VIB
1: VIB, VIA/II
2: External switching
(FCHG enabled)
3: External contact UP/DOWN
4: External contact UP/DOWN
(Setting retained even if the
power is turned off)
5: VIA/II + VIB
0
The VIA terminal and II terminal cannot be used at the same time.
1) Automatic frequency switching 1
Frequency priority selection parameter (Default setting)
= 0: Terminal board is selected.
First priority is assigned to analog input terminals VIA/II, and second priority to analog input terminals VIB.
When the input to VIA/II with first priority becomes null, control will be switched automatically to VIB with sec-
ond priority.