Terminals
‑53‑
Figure 4‑2 Main circuit terminal pin layout of servo drives in size A/C/D
Table 4–1 Description of main circuit terminal pins of servo drives in size A/C/D
Name
Description
L1C, L2C (control
circuit power input
terminals)
See the nameplate for the rated voltage class.
L1, L2, L3 (main circuit
power input
terminals)
[1]
Power input terminals of the servo drive. See the nameplate for
the rated voltage class.
P⊕, D, and C
(terminals for
connecting an
external braking
resistor)
[2]
Remove the jumper bar between terminals P⊕ and C before
connecting an external regenerative resistor between terminals
P⊕ and D.
P⊕ and N⊖ (servo
bus terminals)
Used by the common DC bus for multiple servo drives.
U, V, W (terminals for
connecting the servo
motor)
Connected to U, V, and W phases of the servo motor.
PE grounding terminal
Connected to the grounding terminal of the motor for grounding
purpose.
Note
● [1]: The power input terminals of the 220V servo drive’s main circuit are L1, L2, and
L3; and the power input terminals of the 380V servo drive’s main circuit are R, S,
and T.
● [2] The built‑in braking resistor or jumper bar is not available in models S1R6 and
S2R8. If an external regenerative resistor is needed for these models, connect it
between terminals P⊕ and C.
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