Yaskawa Large Capacity Sigma II Series - Manual (Page 113)

4.2 Settings According to Host Controller
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The contact input speed control function is used only when signals are allocated to /SPD-D, /SPD-A,
and /SPD-B.
Direction of Rotation Selection
The input signal /P-CON (/SPD-D) is used to specify the direction of servomotor rotation.
• When contact input speed control is used, the input signal /P-CON (/SPD-D) specifies
the direction of servomotor rotation.
Note: 0: OFF (high level); 1: ON (low level)
When contact input speed control is not used, the /P-CON signal is used for proportional
control, zero clamping, and torque/speed control switching.
„ Example of Contact Input Speed Control Operation
The following example shows operation by contact input speed control. Using the soft start
function reduces physical shock when the speed is changed.
→ Input P-CON CN1-41 Proportional Control Reference,
etc. Speed/Torque
Control,
Position Control
/P-CON (/SPD-D) Meaning
0 Forward rotation
1 Reverse rotation
INFO
- SPEED 1
Motor speed
+SPEED 3
+SPEED 2
+SPEED 1
- SPEED 2
- SPEED 3
0
OFF ON
Speed 1
Stop
Set
Contact Input Speed Control
acceleration and
deceleration at Pn305 and
Pn306 (soft start times).
/P-CL (/SPD-A)
/N-CL (/SPD-B)
/P-CON(/SPD-D)
Speed 2
Speed 3
Stop
Stop
Speed 1
Speed 2
Speed 3
OFF OFF OFF OFF
OFF OFF OFF OFF OFF
OFF OFF OFF OFF OFF
ON ON ON
ON ON ON ON
ON ON ON