XtraDrive User Manual Chapter 5: Parameter Settings and Functions
5-48
îš„ Examples of Input Signal Allocation
The procedure used to allocate sequence input signals is described using
the /S-ON signal as a typical example.
Pn50A.1
Setting
Description
0 Inputs the /S-ON signal from the SI0 (CN1-40) input terminal.
1 Inputs the /S-ON signal from the SI1 (CN1-41) input terminal.
2 Inputs the /S-ON signal from the SI2 (CN1-42) input terminal.
3 Inputs the /S-ON signal from the SI3 (CN1-43) input terminal.
4 Inputs the /S-ON signal from the SI4 (CN1-44) input terminal.
5 Inputs the /S-ON signal from the SI5 (CN1-45) input terminal.
6 Inputs the /S-ON signal from the SI6 (CN1-46) input terminal.
Signal polarity:
Normal.
Servo ON signal
is valid when low
(ON)
7 Sets /S-ON signal so that it is always valid.
8 Sets /S-ON signal so that it is always invalid.
Set the Servo-ON
signal (/S-ON) so
that it is always
valid or always
invalid.
9 Inputs the S-ON signal from the SI0 (CN1-40) input terminal.
A Inputs the/S-ON signal from the SI1 (CN1-41) input terminal.
B Inputs the S-ON signal from the SI2 (CN1-42) input terminal.
C Inputs the S-ON signal from the SI3 (CN1-43) input terminal.
D Inputs the S-ON signal from the SI4 (CN1-44) input terminal.
E Inputs the S-ON signal from the SI5 (CN1-45) input terminal.
F Inputs the/S-ON signal from the SI6 (CN1-46) input terminal.
Signal polarity:
Inversion.
Valid at OFF
(H level) with
Servo
ON signal
As shown in the table above, the /S-ON signal can be allocated to any
input terminal from SI0 to SI6. /S-ON is always input when Pn50A.1 is
set to 7, and an external signal line would therefore not be needed
because the servo amplifier will determine whether the servo is ON or
OFF.
The /S-ON signal is not used when Pn50A.1 is set to 8. This setting is
meaningful only in the following instances.
• When the factory set input signal is to be replaced by another input
signal.
• The signal must be left ON (low level) during normal operation to
make the signal valid when OFF (high level) when forward run
prohibit (P-OT) and reverse run prohibit (N-OT) are input. The
input terminal signal line must be left ON even in system
configurations that do not require this signal, but unnecessary wiring
can be eliminated by setting Pn50A.1 to 8.
• By setting 9 to F, the signal polarity can be reversed.
Note: Several signals can be allocated to the same input circuit.
When the servo is ON, the forward run prohibit or reverse run prohibit signal is used.
At a setting with inverted polarity, the failed safe operation may not be possible in the case of signal
line disconnection.
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