Sigma II User’s Manual
Chapter 5: Parameter Settings and Functions
5-63
n
Setting
Use the following parameter to set the motor speed level at which zero clamp is per-
formed.
If zero clamp speed control is selected, set the motor speed at which zero clamp is to
be performed. The maximum speed will be used if the value of Pn501 is set higher
than the maximum speed of the servomotor.
Zero Clamp Conditions
Zero clamp is performed when all the following conditions are satisfied:
•
Zero clamp speed control is selected (parameter Pn000.1 is set to A).
•
/P-CON (/ZCLAMP)(CN1-41) is ON (0V).
Pn000.1 Setting
Control Mode
A
Zero Clamp Control Mode
This mode allows the zero clamp
function to be set when the servomo-
tor stops.
• The speed reference is input
from V-REF (CN1–5).
• /P-CON (/ZCLAMP)(CN1–41)
is used to turn the zero clamp
function ON and OFF.
Zero clamp is performed when the fol-
lowing two conditions are satisfied:
• /P-CON (/ZCLAMP) is ON.
• Speed reference is below the
setting designated at Pn501.
Parameter
Signal
Setting
(rpm)
Description
Pn501
Zero Clamp Level
Setting Range: 0 to 10000
Default Setting: 10
Speed Control
CN1-41 is
open (OFF).
Turns the zero
clamp func-
tion OFF.
CN1-41 is 0V
(ON).
Turns the zero
clamp func-
tion ON.
Servo amplifier
Speed reference
Zero clamp
V-REF
/P-CON
/ZCLAMP
CN1-5
CN1-41
