Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
Allocate one of the Multi-function Input 1 to 7 Selection (C001 to C007) to 02 to 05 or 32 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/A201) 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
1st/2nd Frequency Reference Selection (A001/A002) setting.
Communications etc.
Set value in A001/A201
1st/2nd Frequency
Reference Selection
02:
Digital Operator (F001)
*1
Multi-step Speed
Selection
00: Binary (16-step selection with 4 termi-
nals)
01: Bit (8-step selection with 7 terminals)
Multi-function Input
1 to 7 Selection
02 to 05: CF1 to CF4
Binary 15-step
32 to 38: SF1 to SF7
Bit 7-step
1st Multi-step Speed
Reference 0
*1
0.00
Starting Frequency to 1st Maximum Fre-
quency
2nd Multi-step
Speed Reference
0
*2
0.00
Starting Frequency to 2nd Maximum Fre-
quency
Multi-step Speed
Reference 1 to 15
0.00
Starting Frequency to Maximum Frequency
*1. Only the frequency reference at the 0th speed depends on the 1st/2nd Frequency Reference Selection
(A001/A002) setting.
*2. To enable the switching to the 2nd control, allocate one of the Multi-function Input Terminal 1 to 7 Selection
(C001 to C007) to 08 (SET) and turn ON that terminal.
Using Multi-step Speed Reference
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