SMC Networks LECSB2-T Series

3. SIGNALS AND WIRING
3 - 15
3.3 Explanation of power supply system
3.3.1 Signal explanations
POINT
For the layout of connector and terminal block, refer to chapter 9 DIMENSIONS.
Symbol
Connection target
(application)
Description
L1/L2/L3
Main circuit power
supply
Supply the following power to L1, L2, and L3. For 1-phase 200 V AC to 240 V AC,
connect the power supply to L1 and L3. Leave L2 open.
Driver
Power
LECSB2-T5 to
LECSB2-T9
3-phase 200 V AC to 240 V AC,
50 Hz/60 Hz
L1/L2/L3
1-phase 200 V AC to 240 V AC,
50 Hz/60 Hz
L1/L3
P3/P4
-
Connect P3 and P4. (factory-wired)
P+/C/D
Regenerative
option
When using a driver built-in regenerative resistor, connect P+ and D. (factory-wired)
When using a regenerative option, disconnect P+ and D, and connect the
regenerative option to P+ and C.
Refer to section 11.2 for details.
L11/L21
Control circuit
power supply
Supply the following power to L11 and L21.
Driver
Power
LECSB2-T5 to LECSB2-T9
1-phase 200 V AC to 240 V AC
L11/L21
U/V/W
Servo motor
power output
Connect the driver power output (U/V/W) to the servo motor power input (U/V/W)
directly. Do not let a magnetic contactor, etc. intervene. Otherwise, it may cause a
malfunction.
N-
-
Do not connect to the driver.
Protective earth
(PE)
Connect it to the grounding terminal of the servo motor and to the protective earth
(PE) of the cabinet for grounding.