Omron RX Series - Page 355

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7 Detailed Functions
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
7-3 Basic Functions (Group A)
7
• Setting the Multi-function Input S1 to S8 Selection (C001 to C008) to 32 (SF1) to 38 (SF7) enables
the selection of the Multi-step Speed Reference 0 to 7.
• Use the Multi-step Speed Reference 1 to 7 (A021 to A027) to set the frequency for SF1 to SF7.
• For the Multi-step Speed Reference 0, set the Frequency Reference Selection (A001).
To enable the 1st/2nd/3rd Multi-step Speed Reference 0 setting, set A001 to 02 (Digital Operator:
F001).
If this parameter is set to 01 (Control circuit terminal block: Analog input), the frequency reference for
the Multi-step Speed Reference 0 is set via analog input.
Bit Operation
Parameter No. Function name Data Default data Unit
C001 to C008
Multi-function Input S1 to
S8 Selection
32: SF1 (Multi-step speed setting bit 1)
33: SF2 (Multi-step speed setting bit 2)
34: SF3 (Multi-step speed setting bit 3)
35: SF4 (Multi-step speed setting bit 4)
36: SF5 (Multi-step speed setting bit 5)
37: SF6 (Multi-step speed setting bit 6)
38: SF7 (Multi-step speed setting bit 7)
––
CF1
CF2
CF3
Frequency
reference
13
1
5
9
Without determination time (C169)
11
CF4
15
With determination time (C169)
4
Determination time (C169)
Multi-step
speed
SF7 SF6 SF5 SF4 SF3 SF2 SF1
0th OFF OFF OFF OFF OFF OFF OFF
1st ××××××ON
2nd ×××××ONOFF
3rd ××××ONOFFOFF
4th × × × ON OFF OFF OFF
5th × × ON OFF OFF OFF OFF
6th × ON OFF OFF OFF OFF OFF
7th ON OFF OFF OFF OFF OFF OFF
• When several terminals simultaneously turn ON, the bit
with the smallest number has priority.
In the above table, x indicates that a speed is selected
regardless of the ON/OFF status of the bit.
SF1
SF2
SF3
SF4
FW
1st
2nd
3rd
4th
5th
6th
7th
0th
Frequency from the
Digital Operator or the
external analog input
terminal
1st
SF5
SF6
SF7
SF8