Electrical Design Guide
‑24‑
Figure 3‑5 Wiring of external regenerative resistor
For cables used for terminals P⊕ and C, see "
3.2.1.3 Power Cable Specifications
"
on
page 28
.
Observe the following precautions when connecting the external regenerative resistor:
● 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 terminals 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.
● Select a resistor with resistance higher than or equal to the minimum permissible
value. Failure to comply will result in Er.201 (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.