User Constant Settings and Functions
5.4.3 Using the Zero Clamp Function
5 -62
The dynamic brake is an emergency stop function. Do not repeatedly start and stop the Servomotor using the
servo ON signal (/S-ON) or by repeatedly turning power ON and OFF.
5.4.3 Using the Zero Clamp Function
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Zero Clamp Function
The zero clamp function is used for systems where the host controller does not form a position
loop for the speed reference input. In other words, thisfunction isused to stop andlock theServo-
motor even when the input voltage of speed reference V-REFisnot 0 V. An internal position loop
is temporarily formed to clamp the Servomotor within one pulse when the zero clamp function
is turned ON. Even if the Servomotor is forcibly rotated by external force, it will still return to
the zero clamp position.
Host controller
Speed reference
A speed reference below the
Pn501 setting is ignored.
Stops
precisely.
/P-CON
(/ZCLAMP)
V
-
REF
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User Constant Setting
Set the following user constant so that the input signal /P-CON (/ZCLAMP) can be used to en-
able or disable the zero clamp function.
Pn000.1
Control Method Selection
Factory
Setting:
0
Speed Control
®
Input /P-CON CN1-41
Proportional Control, etc.
Speed/Torque
Control,
Position Control
The /ZCLAMP signal can be used when an input circuit signal is allocated. See
5.3.3 Input Circuit Signal Al-
location
for more details.
5
IMPORTANT
INFO
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