Lite-On Technology Corp.
Industrial Automation
23
The protective paint on the area where the U-shaped bracket for the metal pipe is fixed to the metal
surface needs to be removed to ensure that the contact is effective. Refer to the figure as follows.
3.
The copper mesh for separation of the motor wire must be connected adequately to the metal
surface. The U-shaped bracket for the metal pipe should be used to fix the copper mesh for
separation at both ends of the motor wire to the metal surface. See the figure below for the correct
connection.
2.7.
Selection for the regenerative resistor
If the output torque and rotating speed are in opposite directions, the energy is transmitted from the
loading end into the drive. The energy entered the capacitor of the DC bus so that the voltage of the
capacitor increases. The energy recharged can only be consumed by the regenerative resistor when the
voltage rises to a certain value. The regenerative resistor is included in the drive and available for
external connection.
The table below lists the specifications of the regenerative resistor offered by the ISA-7 series.
Drive
(kW)
Specifications of the built-in
regenerative resistor
The regenerative
capacity processed by
the built-in
regenerative resistor
Minimum resistance
tolerable
Resistance (PD-45) Capacity (PD-46)
0.2
--
--
--
40
0.4
40
40
20
40
0.75
40
40
20
40
1.0
40
40
20
40
1.5
20
100
50
20
2.0
20
100
50
20
The protective paint on the area where the bracket is fixed to the metal
surface needs to be removed to ensure that the contact is effective.
U-shaped bracket
for the metal pipe
The metal surface with
adequate earthing
