3.2.1 Wiring connection mode
Servo system connection refer Table
3-2
. If the power cable is too long, the wire diameter needs to be
increased appropriately。
Table 3-5 power port wiring specification table
Danger!
⚫
FD435/FD625
drives are factory-configured with short wires connected to
DC+/RB- and RB2
, indicating the use of internal braking resistors
(FD435 built-in
100
Ω
/20W
；
FD625 built-in 300
Ω
/20W)
，When the braking power exceeds the
tolerable range of the internal braking resistor, the drive will alarm the braking
resistor to be abnormal and display "0100".
When the actual braking power
exceeds the limit power, please disconnect the short circuit before connecting
the external braking resistor. For the selection of external braking resistor,
please refer to Appendix 1。
⚫
It is forbidden to connect the power cable to the UVW terminal, and it is
forbidden to connect the external braking resistor to the DC+(RB+) and DC-
terminals. Before the drive is powered on, please check again whether the
wiring is correct.
。
⚫
There may be high voltage remaining in the drive after the power is cut off.
Please confirm that the CHARGE indicator has gone out ten minutes after the
power is cut off before overhauling the drive.
⚫
The drive has a built-in dynamic braking circuit, which provides braking
resistance through the internal resistance of the motor, which can effectively
shorten the braking distance when the motor stops in an emergency.
⚫
Do not drag the motor to run at high speed under the condition of power cut-
off, the back electromotive force generated when the motor rotates will cause
damage to the drive or motor.
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