SMC Networks LECPA Series User Manual

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(3) Pulse signal input circuit
1) Differential input
Connect the differential output terminal of the positioning unit directly to the NP+/NP- terminal and the
PP+/PP- terminal.
Inside of the driver
Positioning unit
NP+ <3>/PP+ <5>
NP-<4>/PP- <6>
Line driver
Caution
For differential input, connect the positioning unit using the line driver which is equivalent to DS26C31T.
2) Open collector input
Connect the current limiting resistor R which is corresponding the pulse signal voltage in series.
● NPN type (LECPAN□-□)
Power supply for pulse signal
Inside of the driver
Power supply voltage for
pulse signal
Current limiting
resistor R type
Power supply current
limiting resistor
24V DC ±10%
3.3kΩ ±5% (0.5W or more )
LEC-PA-R-332
5 VDC ±5%
390Ω ±5% (0.1W or more )
LEC-PA-R-391
PP- <6>
Positioning
unit side
NP+ <3>
NP- <4>
PP+ <5>
120Ω
120Ω
Current limiting
resistor R
1kΩ
1kΩ
Current limiting
resistor R
1kΩ
120Ω

SMC Networks LECPA Series Specifications

General

Brand	SMC Networks
Model	LECPA Series
Category	Industrial Electrical
Language	English