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H.007 dc braking current, H.008 dc braking time – Rockwell Automation Liqui-Flo AC GP Vector Drive Version 6.4 User Manual

Page 141

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Programming Reference

4-59

With DC braking enabled (H.005 = ON), the braking torque by the motor is defined by
a percentage of motor rated amps (100% of motor rated amps).

Important: If H.007 is set too high, faults may occur (OC, OCA, OCb, or PUo will be

displayed).

With DC braking enabled (H.005 = ON), braking will be activated after a stop
command when the decelerating drive reaches a speed corresponding to DC Braking
Start Frequency (H.006). The braking period ends after the programmed time
regardless of the actual motor speed. The value should be set to a level that avoids
activation at rest.

H.007 DC Braking Current

This parameter sets
the DC current level
applied to the motor
during DC braking.

Parameter Range:

0 to 100% of motor nameplate amps

Default Setting:

10

Parameter Type:

Tunable

Refer also to parameters:

H.005 DC Braking Enable
H.006 DC Braking Start Frequency
H.008 DC Braking Time

H.008 DC Braking Time

This parameter sets
the time period for
which DC braking will
be applied.

Parameter Range:

0.1 to 20.0 seconds

Default Setting:

3.0

Parameter Type:

Tunable

Refer also to parameters:

H.005 DC Braking Enable
H.006 DC Braking Start Frequency
H.007 DC Braking Current