Using Multi-Step Speed Operation - YASKAWA G7 Series Technical Manual

Using Multi-Step Speed Operation

With Varispeed-G7 series Drives, you can change the speed to a maximum of 17 steps, using 16 frequency ref-
erences, 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.
Related Parameters
To switch frequency references, set multi-step speed references 1 to 3 and the jog reference selection in the
multi-function contact inputs.
Multi-function Contact Inputs (H1-01 to H1-10)
Parameter
Terminal
Number
S5 H1-03
S6 H1-04
S7 H1-05
S8 H1-06
Combining Multi-Function References and Multi-Function Contact Inputs
You can change the selected frequency reference by combining the ON/OFF status of S4 to S7 (multi-function
contact input terminals) to set multi-step speed references 1 to 3 and the jog frequency selection. The follow-
ing table shows the possible combinations.
TerminalS5 TerminalS6
Multi-step Multi-step
Speed
Speed
Reference 1 Reference 2
1 OFF
2 ON
3 OFF
4 ON
5 OFF
6 ON
7 OFF
8 ON
9 -
* Terminal S8's jog frequency selection is given priority over multi-step speed references.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Set Value
Multi-step speed reference 1 (Also used for master speed/auxiliary speed switching when
3
multi-function analog input H3-09 is set to 2 (auxiliary frequency reference).)
4 Multi-step speed reference 2
5 Multi-step speed reference 3
6 Jog frequency selection (given priority over multi-step speed reference)
TerminalS7 TerminalS8
Multi-step Jog
Speed Speed Frequency
Reference 3 Selection
OFF OFF OFF
OFF OFF OFF
ON OFF OFF
ON OFF OFF
OFF ON OFF
OFF ON OFF
ON ON OFF
ON ON OFF
*
- -
ON
Frequency Reference
Details
Selected Frequency
Frequency reference 1 d1-01, master speed frequency
Frequency reference 2 d1-02, auxiliary frequency 1
Frequency reference 3 d1-03, auxiliary frequency 2
Frequency reference 4 d1-04
Frequency reference 5 d1-05
Frequency reference 6 d1-06
Frequency reference 7 d1-07
Frequency reference 8 d1-08
Jog frequency d1-17
5
6-