Omron RX Series - Page 228

5 Basic Settings
5 - 32
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
Allocate one of the Multi-function Input S1 to S8 Selection (C001 to C008) to 02 to 05 or 21 to 38
(Multi-step speed) and turn ON that terminal. This enables the inverter to perform multi-step speed
operation, independent of Frequency Reference Selection (A001) settings.
The frequency depends on the value set in the Multi-step Speed Reference 1 to 15 (A021 to A035).
However, at the 0th speed where multi-step input signals are all OFF, the frequency depends on the
Frequency Reference Selection (A001) setting.
Using Multi-step Speed Reference
Parameter No. Function name Data
Default
data
Unit
A001
Frequency
Reference Selection
02: Digital Operator (F001)
*1
*1. Only the frequency reference at the 0th speed depends on the Frequency Reference Selection (A001) setting.
02 –
A019
Multi-step Speed
Selection
00: Binary (16-step selection with 4
terminals)
01: Bit (8-step selection with 7
terminals)
00 –
C001 to C008
Multi-function Input
S1 to S8 Selection
02 to 05: CF1 to CF4
Binary 15-step
––
32 to 38: SF1 to SF7
Bit 7-step
A020
1st Multi-step Speed
Reference 0
*1
0.00
Starting Frequency to 1st Maximum
Frequency
6.0 HzA220
2nd Multi-step
Speed Reference 0
*2
*2. To enable the switching to the 2nd/3rd control, allocate one of the Multi-function Input Terminal S1 to S8
Selection parameter (C001 to C008) to 08 (SET) or 17 (SET3) and turn ON that terminal.
0.00
Starting Frequency to 2nd Maximum
Frequency
A320
3rd Multi-step
Speed Reference 0
*2
0.00
Starting Frequency to 3rd Maximum
Frequency
A021 to A035
Multi-step Speed
Reference 1 to
Multi-step Speed
Reference 15
0.00
Starting Frequency to 1st Maximum
Frequency
0.0 Hz
V
Communications