SMC Networks LECSN-T Series - Page 52

3. SIGNALS AND WIRING
3 - 1
3. SIGNALS AND WIRING ..............................................................................................................................2
3.1 Input power supply circuit ......................................................................................................................3
3.2 I/O signal connection example ................................................................................................................7
3.2.1 For sink I/O interface ...........................................................................................................................7
3.2.2 For source I/O interface ........................................................................................................................8
3.3 Explanation of power supply system ......................................................................................................9
3.3.1 Signal explanations ...........................................................................................................................9
3.3.2 Power-on sequence ..........................................................................................................................10
3.3.3 Wiring CNP1, CNP2, and CNP3 ....................................................................................................11
3.4 Connectors and pin assignment ............................................................................................................13
3.5 Signal (device) explanations .................................................................................................................15
3.5.1 Input device .....................................................................................................................................15
3.5.2 Output device ..................................................................................................................................17
3.5.3 Output signal ..................................................................................................................................19
3.5.4 Power supply ...................................................................................................................................19
3.6 Forced stop deceleration function .........................................................................................................20
3.6.1 Forced stop deceleration function ..................................................................................................20
3.6.2 Base circuit shut-off delay time function .......................................................................................22
3.6.3 Vertical axis freefall prevention function ......................................................................................23
3.6.4 Residual risks of the forced stop function (EM2) ..........................................................................23
3.7 Alarm occurrence timing chart .............................................................................................................24
3.7.1 When you use the forced stop deceleration function ....................................................................24
3.7.2 When you do not use the forced stop deceleration function .........................................................25
3.8 Interfaces................................................................................................................................................26
3.8.1 Internal connection diagram ..........................................................................................................26
3.8.2 Detailed explanation of interfaces .................................................................................................27
3.8.3 Source I/O interfaces .......................................................................................................................29
3.9 Servo motor with a lock .........................................................................................................................30
3.9.1 Safety precautions ..........................................................................................................................30
3.9.2 Timing chart ....................................................................................................................................31
3.9.3 Wiring diagrams (LE-□-□ series servo motor) ...............................................................................37
3.10 Grounding ............................................................................................................................................38