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5 Basic Settings
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
5-9 Multi-function Input Settings
5
5-9-5 Multi-step Speed Operation Function
• Use this function to switch the frequency reference set in the Multi-step Speed Reference 0 to 15
based on the combination of inputs to multi-function input terminals.
• For multi-step speed operation, you can select either 4-terminal binary operation (in 16 steps
maximum) or 7-terminal bit operation (in 8 steps maximum).
For the Multi-step Speed Reference 0, set the Frequency Reference Selection (A001). To enable
the 1st/2nd/3rd frequency reference 0 setting, set A001 to 02 (Digital Operator: F001).
5-9-5 Multi-step Speed Operation Function
Parameter
No.
Function name Data Default data Unit
A019 Multi-step Speed Selection
00: Binary (16-step selection with 4
terminals)
01: Bit (8-step selection with 7
terminals)
00 –
A020
1st Multi-step Speed
Reference 0
0.00
Starting Frequency (b082) to 1st
Maximum Frequency (A004)
6.0
Hz
A220
2nd Multi-step Speed
Reference 0
*1
*1. To enable the switching to the 2nd/3rd control, allocate one of the Multi-function Input S1 to S8 Selection (C001
to C008) to 08 (SET) or 17 (SET3) and turn ON that terminal.
0.00
Starting Frequency (b082) to 2nd
Maximum Frequency (A204)
A320
3rd Multi-step Speed
Reference 0
*1
0.00
Starting Frequency (b082) to 3rd
Maximum Frequency (A304)
A021 Multi-step Speed Reference 1
0.00
Starting Frequency (b082) to
1st/2nd/3rd Maximum Frequency
(A004/204/304)
0.0
A022 Multi-step Speed Reference 2
A023 Multi-step Speed Reference 3
A024 Multi-step Speed Reference 4
A025 Multi-step Speed Reference 5
A026 Multi-step Speed Reference 6
A027 Multi-step Speed Reference 7
A028 Multi-step Speed Reference 8
A029 Multi-step Speed Reference 9
A030
Multi-step Speed Reference 10
A031
Multi-step Speed Reference 11
A032
Multi-step Speed Reference 12
A033
Multi-step Speed Reference 13
A034
Multi-step Speed Reference 14
A035
Multi-step Speed Reference 15
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