DTP7H-D hardware user
’s manual
DAINCUBE Corp.
29 / 35
9.4.4.
Power
The power supply is DC24V. Voltage regulation should be within ± 5%.
Power lines are twisted a densely as possible, and should be connected as short as possible.
If Noise is more or larger, use an isolation transformer or Noise Filter.
(If noise is severe, use an isolation transformer or noise filter.)
Power-line should be used the thickest (2mm or more). So that no voltage fluctuations.
Separate the motor wiring and the DC power and signal line wiring as far as possible. Please drop as
possible over 100mm.
Please wire the DC24V power line separately from the motor line.
Lightning-proof Surge
absorber should be used to safety from such as lightning strikes and surges.
Install the surge protector.
[Figure 9-7] Surge absorber
✏
Note
:
Surge absorber should be selected to allow the voltage is higher than the maximum input
voltage.
9.4.5.
Method wiring
(1) Signal and communication cables is placing a high-voltage cable or power line over a
distance of 10cm, please not affected by the noise and magnetic field
(2) If possible use separate ducts for power cables and control lines.
(3) All cable should be the Shield cable.
(4) Minimizing the loops
[Figure 9-8] Avoiding loops in wiring designs
✏
Note
:
This applies to victim wiring too. Antennae work equally well in receive and transmit
modes.
✏
Note
According to the NFPA79 approved by the United States, when the shielded wire is not
used for wiring between a servo amplifier and a servo motor, the wiring must be
insulated from wiring of other control or signal circuits.
(Example: 100 mm or more for 20 A or less)
