Brake Resistor Cable Selection; Brake Resistor Installation - IMO HD2 IP Series Instruction Manual

HD2 IP55 High-ingress Protection Series Inverter
inverter model
HD2IP-180A-43
HD2IP-215A-43
Note:
1. Select brake resistors according to the resistance and power data provided by our company.
2. The brake resistor may increase the brake torque of the inverter. The preceding table
describes the resistance and power for 100% brake torque, 10% brake usage, 50% brake
usage, and 80% brake usage. You can select the brake system based on the actual operation
conditions.
3. When using an external brake unit, set the brake voltage class of the brake unit properly by
referring to the manual of the dynamic brake unit. If the voltage class is set incorrectly, the
inverter may not run properly.



Brake resistor cable selection

D.8.2
Brake resistor cables need to be shielded cables.

Brake resistor installation

D.8.3
All resistors need to be installed in places with good cooling conditions.

Installation of brake resistors


Resistance
Brake applicable
unit for 100%
model brake
torque (Ω)
5.4
DBU90
/110-4
4.5
Do not use brake resistors whose resistance is lower than the specified
minimum resistance. inverters do not provide protection against
overcurrent caused by resistors with low resistance.
In scenarios where brake is frequently implemented, that is, the brake usage
is greater than 10%, you need to select a brake resistor with higher power as
required by the operation conditions according to the preceding table.
The materials near the brake resistor or brake unit must be non-flammable.
The surface temperature of the resistor is high. Air flowing from the resistor is
of hundreds of degrees Celsius. Prevent any materials from coming into
contact with the resistor.
inverters of or lower need only built-in brake resistors.
PB and (+) are the terminals for connecting brake resistors.
Dissipated Dissipated
power of power of
brake brake
resistor resistor
(kW) (kW)
10% brake 50% brake
usage usage
14 68
17 83
-334
Dissipated
power of
Min.
brake allowable
resistor
brake
(kW)
resistance
(Ω)
80% brake
usage
108
4.4
132