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3. SIGNALS AND WIRING
2) Differential line driver system
Connect as shown below.
PP
NP
PG
NG
SD
Servo amplifier
(Note)
Approx.
100
Approx.
100
Note. Pulse train input interface is comprised of a photo coupler.
Therefore, it may be any malfunctions since the current is reduced when connect a resistance
to a pulse train signal line.
The explanation assumes that the input waveform has been set to the negative logic and forward and
reverse rotation pulse trains (parameter No.21 has been set to 0010).
For the differential line driver, the waveforms in the table in (1) (a) of this section are as follows.
The waveforms of PP, PG, NP and NG are based on that of the ground of the differential line driver.
PP
PG
NP
NG
Forward rotation
pulse train
Reverse rotation
pulse train
Forward rotation command Reverse rotation command
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