NSK MEGATORQUE M-ESB-YSB2020AB300 - Analog Velocity Command Operation

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B
B
3
3
t
t
y
y
p
p
e
e
B
B
5
5
t
t
y
y
p
p
e
e
6.3. Velocity Control Mode Operation
6.3.2. Analog Velocity Command Operation
2
2
3
3
t
t
y
y
p
p
e
e
2
2
5
5
t
t
y
y
p
p
e
e
6.3.2. Analog Velocity Command Operation
l Velocity of the Motor may be directly controlled with the analog velocity command in the
velocity control mode.
à Voltage range of the analog command is ± 10V. Offset adjustment is possible using the
adjusting pod (VR1) on the front panel of the Driver Unit or setting the parameter AF.
(Refer to “6.3.2.2. Offsetting Analog Command.”)
à It is possible to set dead band of command voltage. (Refer to “6.3.2.1. Dead Band Set
to Command Voltage.”)
à The parameter AC selects the polarity of command voltage. (Refer to Table 6-14.)
à Relation between the command voltage and the velocity may be selected with the
parameter AGV. (See Figure 6-23.)
à You may set a limit to steep changes in acceleration and deceleration induced by
velocity commands. (Refer to “6.3.3. Function to Limit Acceleration / Deceleration.”
Table 6-14
DI setting AC setting Command voltage Rotating direction
0 1 +
CCW
0 1 –
CW
0 – 1 +
CW
0 – 1 –
CCW
1 1 +
CW
1 1 –
CCW
1 – 1 +
CCW
1 – 1 –
CW
Figure 6-26: Command voltage and velocity (AC1)
-10V
+10V
3 s
-
1
AGV = 0.5
AGV = 1.0
AGV = 2.0
-3 s
-
1