System structure
‑15‑
For the sake of safety, install a residual current device (RCD) to provide protections
against overload and short circuit or a specialized RCD to protect the grounding
cable.
● Do not start or stop the motor by using the electromagnetic contactor. As a high‑
inductance device, the motor may generate high voltages instantaneously, which
may break down the contactor.
● When connecting an external power supply to the control circuit or a 24 VDC
power supply, pay attention to the power capacity as insufficient power capacity
will lead to insufficient supply current, resulting in failure of the servo drive or the
brake. This is especially true when the power supply is used to power up multiple
servo drives or brakes. The brake must be powered up by a 24 VDC power supply
that matches the motor model and meets the brake power requirements.
Note
● The built‑in regenerative 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.
● Remove the jumper between P⊕ and D before using the external regenerative
resistor. Failure to comply will result in overcurrent and damage the braking
transistor.
● Do not connect the external regenerative resistor to the positive or negative pole
of the bus directly. Failure to comply will damage the servo drive and result in a
fire.
● Do not select any resistor lower than the minimum allowed resistance value.
Failure to comply will result in E201.0 (Hardware overcurrent) or damage the servo
drive.
● Make sure parameters H02.25 (Regenerative resistor setting), H02.26 (Power of
external regenerative resistor) and H02.27 (Resistance of external regenerative
resistor) are set properly before operating the servo drive.
● Install the external regenerative resistor on an incombustible object such as a
metal.
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