5-10
105
-5-10
Speed Command
(rpm)
Input Voltage(V)
Slope is set
by Sn216
6000
3000
1500
-6000
-3000
-1500
Speed Command(rpm)
Input Voltage (V)
Before Adjustment
Bias Voltage
After Adjustment
Input Voltage (V)
Bias Voltage
Adjusting Value
Speed Command(rpm)
5-3-2 Analog Speed Command Ratio
Analog speed command ratio can be used to adjust the relationship between
Input voltage speed command and actual speed command.
Parameter Name Default Unit Setting range Control mode
Sn216
Analog speed
command ratio
Rated
Speed
rpm/10V 100~6000 S
Setting Example:
(1) With Sn216 set to 3000, a speed command input voltage of 10V, corresponds to
3000rpm; for an input voltage of 5V speed command will be 1500rpm.
(2) With Sn216 set to 2000, a speed command input voltage of 10V, corresponds to 2000rpm,
for an input voltage of 5 volts speed command will be 1000rpm.
5-3-3 Adjusting the Analog Reference Offset
For a speed command of 0V, motor could possibly be rotating slowly.
To rectify this effect by adjust offset value manually in parameter Sn217 or use auto offset adjust
feature. (Please refer to section 3-2-2).
Note: To check and set the offset to zero, insert a link between analog torque command contact SIC
(CN1-26) and analog ground contact AG (CN1-29).
Parameter Name Default Unit Setting range Control mode
Sn217
Analog speed
command offset
adjust
0 mV -10000~10000 S
Refer to the following diagrams:
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