Yaskawa SGDB - Manual (Page 78)

APPLICATIONS OF Σ-SERIES PRODUCTS
3.2.1 Inputting Speed Reference
66
Cn-2B
Setting
Control Method
4
Speed Control (Contact Reference) $ Speed
Control (Analog Reference)
This speed control allows switching between
contact and analog references.
• Analog reference is input from V-REF (1CN-5).
• /P-CL (1CN-45) and /N-CL (1CN-46) are used
to switch between contact and analog
references.
• Contact input speed is selected.
SGDB SERVOPACK
Speed
reference
1CN-5
1CN-45
1CN-46
V-REF
/P-CL
/N-CL
Contact
input
speed control
reference
1CN-45 1CN-46
Open Open Analog
reference
Closed Open Contact
f
Closed Closed
reference
Open Closed
7, 9
Position/Torque Control $ Speed Control
This control mode can be switched between
position/torque control and speed control.
• Speed reference is input from V-REF (1CN-5).
• /P-CON (1CN-41) is used to switch the control
mode between position/torque control and
speed control.
SGDB SERVOPACK
Speed
reference
1CN-5
1CN-41
Control method
changeover /P-CON
1CN-41 is
open
Position/Torque control
1CN-41 is
at 0 V
Speed control
10
Zero-clamp Speed Control
This speed control allows the zero-clamp function
to be set when the motor stops.
• Speed reference is input from V-REF (1CN-5).
• /P-CON (1CN-41) signal is used to turn the
zero-clamp function ON or OFF.
Zero-clamp
Zero-clamp is performed when
SGDB SERVOPACK
Speed
reference
1CN-5
1CN-41
/P-CON
10
1CN-41 is
open
Turns zero-clamp function
OFF
Zero clamp is performed when
the following two conditions are
met:
Condition 1: /P-CON is turned
1CN-41 is
at 0 V
Turns zero-clamp function
ON
Condition 1: /P-CON is turned
ON.
Condition 2: Motor speed
d b l th
Condition 2: Motor speed
drops below the
preset value. preset value.
Preset value: Cn-0F (ZCLVL)
3