Easy Start Guide
13. Brake Resistor Connection
Page 13
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Drive Supermarket and must not be reproduced or altered without prior written permission.
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This guide has been produced by The Inverter Drive Supermarket Ltd.
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.
Parameter
Description
How to set
F611
Dynamic Braking threshold
Default is dependant on rating. Should not need to be changed.
F612
Dynamic braking duty ratio (%)
Default is
%. Should be suitable for most applications.
80
F622
Dynamic braking mode
Default is
for “Auto duty ratio”. Should be suitable for most applications.
1
13.1 Parameters to check for Dynamic Braking
Note: Ensure that the resistor is connected
between the “P” and “B” terminals. If the
resistor is connected to any other terminals the
Inverter may be damaged.
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.
13.2 Connecting the Resistor
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.
A wiring diagram is shown in the illustration
opposite. Connect the brake resistor to the P
and B terminals on the Inverter. The order of
the connections is unimportant.
B
P
High inertia loads can cause overvoltage trips
during deceleration and lead to “O.E." 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.
The “brake chopper” within the Inverter detects
excessive braking energy and redirects it to
the resistor when required.
A Brake Resistor is first installed to absorb
braking energy and dissipate it as heat. The
resistor
be correctly sized for both the
Inverter and application.
must
Heat Resistant
Cable
Parker AC10 Series Inverter (to 22kW)
1)Do not re-set while the motor is rotating
2)Perform parts replacement after discharge is finished
3)Do not connect output terminals to the power supply
CAUTION:
L2
U
V
W
L2
P B
U
V
W
