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3. SIGNALS AND WIRING
3.13.2 Servo amplifier terminals
The positions and signal arrangements of the terminal blocks change with the capacity of the servo
amplifier. Refer to section 11.1.
Symbol Connection Target
(Application) Description
L1, L2, L3Main circuit power supply Supply L1, L2 and L3 with three-phase 200 to 230VAC, 50/60Hz power.
U, V, W Servo motor output Connect to the servo motor power supply terminals (U, V, W).
L11, L21 Control circuit power supply Supply L11 and L21 with single-phase 200 to 230VAC power.
P, C Regenerative option
The servo amplifier built-in regenerative resistor is not connected at the time of
shipment.
When using the regenerative option, wire it across P-C.
Refer to section 13.1.1 for details.
NReturn converter
Brake unit
When using the return converter or brake unit, connect it across P-N.
Refer to sections 13.1.2 and 13.1.3 for details.
Protective earth (PE) Connect this terminal to the protective earth (PE) terminals of the servo motor
and control box for grounding.
P1, P Power factor improving DC
reactors
P1-P are connected before shipment. When connecting a power factor improving
DC reactor, remove the short bar across P1-P. Refer to section 13.2.4 for details.