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5-3-2 Analog speed <strong>com</strong>mand Ratio<br />
Analog speed <strong>com</strong>mand ratio can be used to adjust the relationship between<br />
Input voltage speed <strong>com</strong>mand and actual speed <strong>com</strong>mand.<br />
Parameter Name Default Unit Setting range Control mode<br />
Sn216<br />
Analog speed<br />
<strong>com</strong>mand ratio<br />
3000 rpm/10V 100~4500 S<br />
Setting Example:<br />
(1) With Sn216 set to 3000, a speed <strong>com</strong>mand input voltage of 10V, corresponds to<br />
3000rpm; for an input voltage of 5V speed <strong>com</strong>mand will be 1500rpm.<br />
(2) With Sn216 set to 2000, a speed <strong>com</strong>mand input voltage of 10V, corresponds to 2000rpm,<br />
for an input voltage of 5 volts speed <strong>com</strong>mand will be 1000rpm.<br />
5-3-3 Adjusting the analog reference offset<br />
For a speed <strong>com</strong>mand of 0V, motor could possibly be rotating slowly.<br />
To rectify this effect by adjusting offset value manually in parameter Sn217 or use auto offset adjust feature.<br />
(Please refer to section 3-2-2).<br />
Note : To check and set the offset to zero, insert a link between analog torque <strong>com</strong>mand contact<br />
SIN(CN1-26) and analog ground contact AG (CN1-29).<br />
Parameter Name Default Unit Setting range Control mode<br />
Sn217<br />
Analog speed<br />
<strong>com</strong>mand offset<br />
adjust<br />
0 mV -10000~10000 S<br />
5-11
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