Frequency Reference
6
-
7
Using Multi-Step Speed Operation
With Varispeed-E7 series Inverters, you can change the speed to a maximum of 5 steps, using 4 multi-step fre-
quency references, and one jog frequency reference.
The following example of a multi-function input terminal function shows a 5-step operation using multi-step
references 1 and 2 and jog frequency selection functions.
Related Constants
To switch frequency references, set multi-step references 1 and 2 and the jog reference selection in the
multi-function contact inputs.
Multi-function Contact Inputs (H1-01 to H1-04)
Combining Multi-Step Speed References and Multi-Function Contact Inputs
You can change the selected frequency reference by combining the ON/OFF status of S4 to S6 (multi-function
contact input terminals) . The following table shows the possible combinations.
* Terminal S6's jog frequency selection is given priority over multi-step speed commands.
Setting Precautions
When setting analog inputs to step 1 and step 2, observe the following precautions.
•
When setting terminal A1's analog input to step 1 set b1-01 to 1, when setting d1-01 (Frequency Reference
1) to step 1 set b1-01 to 0.
•
When setting terminal A2's analog input to step 2 set H3-09 to 2 (auxiliary frequency reference). When
setting d1-02 (Frequency Reference 2) to step 2 set H3-09 to 1F (do not use analog inputs).
Terminal
Constant Num-
ber
Set Value
Details
S4
H1-02
3
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).)
S5
H1-03
4
Multi-step speed command 2
S6
H1-04
6
Jog frequency selection (given priority over multi-step speed command)
Speed
TerminalS4
TerminalS5
TerminalS6
Selected Frequency
Multi-step Speed
Command 1
Multi-step Speed
Command 2
Jog Frequency
Selection
1
OFF
OFF
OFF
Frequency reference 1 d1-01, master speed frequency
2
ON
OFF
OFF
Frequency reference 2 d1-02, auxiliary frequency
3
OFF
ON
OFF
Frequency reference 3 d1-03
4
ON
ON
OFF
Frequency reference 4 d1-04
5
–
–
ON
*
Jog frequency d1-17
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Содержание E7 Drive
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