YASKAWA SGMAH - Page 119

Sigma II User’s Manual Chapter 5: Parameter Settings and Functions
5 - 35
Smooth speed control can be performed by entering a progressive speed
reference or using contact input speed control. Set each constant to 0 for normal
speed control.
Set each parameter to the following time intervals.
• Pn305: Time interval from when the servomotor starts until it reaches
maximum speed.
• Pn306: Time interval from when the servomotor reaches maximum speed
until it stops.
 Operation by Contact Input Speed Control
The following describes operation by contact input speed control.
Start and Stop
The following input signals are used to start and stop the servomotor.
Use the following table when contact input speed control is used.
Note: 1. 0: OFF (high level); 1: ON (low level)
2. Input signals indicated by the horizontal bar (-) are optional.
• When contact input speed control is not used, input signals are used as external
torque limit inputs.
Note: The contact input speed control function is used only when signals are allocated to /SPD-D, /SPD-A,
and /SPD-B.
Input /P-CL CN1-45
Speed Selection 1
(Forward External Torque Limit Input)
Speed/Torque Control,
Position Control
Input /N-CL CN1-46
Speed Selection 2
(Reverse External Torque Limit Input)
Speed/Torque Control,
Position Control
Contact Signal Parameter
Selected Speed
/P-CON
(/SPD-D)
/P-CL
(/SPD-A)
/N-CL
(/SPD-B)
Pn000.1
-00
3
Stopped by an internal speed
reference of 0.
4
Analog speed reference (V-REF)
input
5
Pulse reference input (position
control)
6
Analog torque reference input
(torque control)
Direction of
rotation
0: Forward
1: Reverse
01
3, 4, 5, 6,
Common
SPEED 1 (Pn301)
1 1 SPEED 2 (Pn302)
1 0 SPEED 3 (Pn303)