6-10
6
îš‹ Using Multi-Step Speed Operation
The inverter supports a multi step speed operation with a maximum of 17 speed steps, using 16 multi-step fre-
quency references, and one jog frequency reference.
The following example of a multi-function input terminal function shows a 9-step operation using multi-step
references 1 to 3 and jog frequency selection functions.
îš„Related Parameters
To switch frequency references, set multi-step references 1 to 3 and the jog reference selection in the multi-
function digital inputs.
Multi-function Digital Inputs (H1-01 to H1-05)
Combining Multi-Step Speed References and Digital Inputs
The selected frequency reference can be changed by combining the ON/OFF status of S4 to S7 (digital input
terminals). The following table shows the possible combinations.
Terminal
Parameter
Number
Set Value Details
S4 H1-02 5 Multi-step speed command 3
S5 H1-03 3 (default)
Multi-step speed command 1 (Also used for master speed/auxiliary speed switching when
multi-function analog input H3-09 is set to 2 (auxiliary frequency reference).)
S6 H1-04 4 (default) Multi-step speed command 2
S7 H1-05 6 (default) Jog frequency selection (given priority over multi-step speed command)
Speed
Multi-step
Speed Com-
mand 1
Multi-step
Speed Com-
mand 2
Multi-step
Speed Com-
mand 3
Jog Fre-
quency Selec-
tion
Selected Frequency
1 OFF OFF OFF OFF Frequency reference 1 d1-01, master speed frequency
2 ON OFF OFF OFF Frequency reference 2 d1-02, auxiliary frequency
3 OFF ON OFF OFF Frequency reference 3 d1-03
4 ON ON OFF OFF Frequency reference 4 d1-04
5 OFF OFF ON OFF Frequency reference 5 d1-05
6 ON OFF ON OFF Frequency reference 6 d1-06
7 OFF ON ON OFF Frequency reference 7 d1-07
8 ON ON ON OFF Frequency reference 8 d1-08
17---
ON
* 1
* 1. Terminal S7's jog frequency selection is given priority over multi-step speed commands.
Jog frequency d1-17
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