Instruction manual

3. SIGNALS AND WIRING
3.4.2 Speed control mode
(1 ) Speed setting
(a) Speed command and speed
The servo motor is run at the speeds set in the parameters or at the speed set in the applied voltage
of the analog speed command (VC). A relationshp between the analog speed command (VC) applied
voltage and the servo motor speed is shown below:
Rated
[r'minl Forward rotation (CCW)
~ CCW direction
-1 0
CW direction 1 VC applied voltage [VI
.__._-
Rated speed
I
.\ Reverse rotation (CW)
The following table in&cates the rotation dnection accordmg to forward rotation start (ST1) and
reverse rotation start (ST2) combination:
(Note) External Input Signals
Rotation Direction
Analog Speed Command (VC)
ST2 ST 1
lntemal Speed
+ Polarity
(Servo lock) (Servo lock) (Servo lock)
(Servo lock)
stop
Stop stop stop
Commands
- Polarity ov
0 1 CCN'
stop
stop stop stop
CW CCR'
(No servo lock)
CW
0 1
ccw CW
0
0
stop
1 1
(Servo lock)
(Servo lock)
(Servo lock)
(Servo lock)
Note. 0 : STlIST2-SG off (open)
1 : STlIST2-SG on (short)
Generally, make connection as shown below:
Servo amolifier
I
Japan Resistor - - - -
RRS10 or equivalent
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