Brake Resistor Connection (Size 2 And Above) - Invertek Optidrive E3 Series Easy Start Manual

Easy Start Guide
Invertek Optidrive E3 Inverter (IP20, 3ph output)

13. Brake Resistor Connection (size 2 and above)

High inertia loads can cause overvoltage trips
during deceleration and lead to "O-Volt" error
messages. In many cases, the solution is to
increase the deceleration time to compensate.
However, if the application requires it, dynamic
braking can be enabled to maintain or reduce
deceleration times by absorbing the energy
generated by such loads.
13.1 Parameters to check for Dynamic Braking
Parameter Description
P-14 Extended Menu Access Code
P-34 Brake Chopper Enable
(Extended Access Required)
+
BR
Heat Resistant
Cable
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Drive Supermarket and must not be reproduced or altered without prior written permission.
Before commencing, confirm that the Inverter and
all cables are completely isolated from the power
supply, have been isolated for at least 5 minutes
and that the motor is not turning.
How to set
Default is 0; set to 101
Default is 0; set to 3 for "Enabled With Software Protection" to suit most applications.
+
BR
A Brake Resistor is first installed to absorb
braking energy and dissipate it as heat. The
resistor must be correctly sized for both the
Inverter and application.
The "brake chopper" within the Inverter detects
excessive braking energy and redirects it to
the resistor when required.
to gain access to "extended" parameters (P-15 to P-50).
13.2 Connecting the Resistor
A wiring diagram is shown in the illustration
opposite. Connect the brake resistor to the +
and BR terminals on the Inverter. The order of
the connections is unimportant.
The braking resistor may get hot during
operation. Ensure that it is suitably-mounted
so any heat generated will not affect other
equipment. Some resistors may include a
thermal relay for additional protection.
It is essential that a resistor of the correct rating
is used. Consult the Inverter product listing at
InverterDrive.com or manual issued by the
manufacturer for details.
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