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5.2 Basic Functions Settings
5-5
(1) Factory-set Input Signal Allocations (Pn50A.0 = 0)
If the factory settings are used to allocate the input signals (Pn50A.0 = 0), polarity detection will start when
the servo ON signal (/S-ON) is ON. The servo ready signal (/S-RDY) will be ON after polarity detection has
been completed, and the servo ON signal remains ON.
(2) Changing Input Signal Allocations (Pn50A.0 = 1)
The polarity detection signal (/P-DET) must be allocated under the following conditions.
• When designing a sequence for the host controller in which the servo ready signal is monitored and then the
servo ON
signal is output.
• When using different timing for the execution of polarity
detection and for sending the servo ON signal.
To use the /P-DET signal, the input signal must be allocated. For details, refer to 3.3.1 Input Signal Alloca-
tions.
When using polarity detection, the servomotor power will b
e ON when the /P-DET signal is ON, and polarity
detection will be executed only once when the /P-DET signal turns ON for the first time.
After polarity detection has been completed, the servomot
or power will turn OFF and the servo ready signal
will turn ON. Then, polarity detection cannot be executed even if the /P-DET signal is turned ON and OFF.
When the control power supply is restored, polarity detection must be executed again.
Note: Use parameter Pn50D.3 to allocate the /P-DET signal for use. For details, refer to 3.3.1 Input Signal Allocations for
details.
Type Name
Connector
Pin Number
Setting Meaning
Input /S-ON
CN1-40
[Factory setting]
ON (closed)
Servomotor power is ON.
Polarity detection is executed once, and the servo
ON s
ignal is ON. The servomotor will be ready
for operation (/S-RDY signal is ON.)
OFF (open)
Servomotor power is OFF.
The servomotor cannot be used.
/S-ON input
(/P-DET)
/S-RDY output
Polarity detection
is being executed.
→
Status display: P-dt
Polarity detection
completed.
→
Normal operation
of servomotor
Type Name
Connector
Pin Number
Setting Meaning
Input
/S-ON
CN1-40
[Factory setting]
ON (closed)
Servomotor power is ON.
Servomotor will be ready for
operation (/S-RDY
signal is ON)
OFF (open)
Servomotor power is OFF.
Servomotor cannot be used.
/P-DET Must be allocated
ON (closed)
Polarity detection is executed only once when the
/P
-DET signal turns ON for the first time.
OFF (open) –
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