YASKAWA SGM-A3 User Manual page 81

APPLICATIONS OF Σ-SERIES PRODUCTS
3.2.1 Inputting Speed Reference cont.
3
TERMS
68
• Using P-CON Signal:
→ Input P-CON 1CN-41
The function of input signal P-CON changes with the memory switch setting.
Memory Switch
Cn-02 Cn-01 Cn-01
Bit 2 Bit B Bit A
0 0
0 0
0 1
0 1
1 −
4) Adjust the speed reference gain using the following user constant.
VREFGN Speed
Reference Gain
Cn-03
This user constant is for speed/torque control
only. Sets the voltage range for speed reference
input V-REF (1CN-5). Sets this user constant ac-
cording to the output form of the host controller or
external circuit.
The factory setting is as follows:
Rated speed (3000 r/min)/6 V = 500
Zero-clamp function
This function is used for a system in which the host controller does not form a position loop.
In this case, the stopping position may shift even if a speed reference is set to 0. If the zero-
clamp function is turned ON, a position loop is internally formed so that the stopping position
is firmly "clamped."
Proportional Control, etc.
Servopack
Switching between P control and PI control
Switching between zero-clamp enabled mode and
zero-clamp prohibited mode
Switching between torque control and speed control
Memory
Changing the direction of rotation
switch
Meaning of P-CON Signal
Switching between proportional (P) control and
0
proportional/integral (PI) control
Switching between zero-clamp enabled/prohibited mode
1
Speed control with zero-clamp function
0
Torque control I (P-CON is not used.)
Switching between torque control and speed control
1
(Torque control II)
Changing the direction of rotation during contact input speed
−
control
Unit: Setting
(r/min)/V Range:
10
to 2162
For Speed/Torque
Control and
Position Control
Factory For Speed/Torque
Setting: Control Only
500
Reference
Set this slope.
speed (r/min)
Reference
voltage (V)