Sigma II User’s Manual Chapter 5: Parameter Settings and Functions
5-65
Setting Motor Speed
Use the following parameter to set the motor speed level at which zero clamp is
performed
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).
• Speed reference drops below the setting level of Pn501.
Note: When the /ZCLAMP signal is allocated, the zero clamp operation will be used even for speed
control (Pn000.1 = 0).
Parameter Signal
Setting
(rpm)
Description
Pn501 Zero Clamp Level
Setting Range: 0 to 10000
Default Setting: 10
Speed Control
V-REF speed reference
Speed
Open (OFF)
Closed
(ON)
Time
Preset value for zero clamping
/P-CON (/ZCLAMP) input
Zero clamp is performed
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