IMPULSE•G+/VG+ Series 4 Technical Manual
November 2022
Page 192
BE2
No Current
Torque Proving Fault.
Before the brake is
released, the VFD’s current/torque did not reach
Initial Brake Release Torque level (C08-16) within
the IFB OK timer (C08-02).
1. Ensure the motor has been
Auto-tuned successfully.
2. Confirm that the holding brake
is closed.
3. If a power limit switch is used,
ensure the switch is closed.
4. Decrease the value of C08-02
to no less than 0.5 seconds.
5. Decrease the value of C04-02
to no less than 5.
6. Decrease the value of C08-16
to no less than 50.
X
BE3
Brake Release NG
Brake Release Fault.
The BE3 fault indicates
that the VFD has released the brake and
commanded the VFD to run, but it has not
detected the expected encoder feedback. A BE3
fault will occur if the pulses received during the
BE3 detection time (C08-06) are less than the
expected number of pulses (C08-07).
1.
X
BE4
Brake Answer 1
Brake Answerback, Brake not Released
Alarm.
At Start, Brake Answerback is not input
within predetermined time (C08-04) after brake
release command is output brake not released.
1. Check brake answerback
circuit.
2. Increase the value of C08-04.
3. Check input status (U01-10).
X
X
BE4-2
Brake 2 Answer 1
Brake 2 Answerback, Brake not Released
Alarm.
Brake 2 Answerback does not release
during Brake Release state.
1. Check brake answerback
circuit.
2. Increase the value of C08-04.
3. Check input status (U01-10).
X
X
BE5
Brake Answer 2
Brake Answerback At Stop Alarm.
At Stop,
Brake Answerback signal is not removed within
predetermined time (C08-11) after brake release
command is removed—brake not closed.
1. Check brake answerback
circuitries.
2. Increase the C08-11 time.
X*
X
BE5-2
Brake 2 Answer 2
Brake 2 Answerback at Stop Alarm.
Brake 2 Answerback does not close during Brake
Set time.
1. Check brake answerback
circuitries.
2. Increase the C08-11 time.
X*
X
BE6
Brake Slipping
Brake Proving Alarm.
The BE6 alarm indicates
that the VFD has commanded the brake to set but
detected excessive encoder feedback. This
occurs if the number of pulses received during the
BE6 detection time (C08-12) is greater than the
expected number of pulses (C08-13).
1. Check the brake.
2.
X*
X
BE6-2
Brake 2 Slipping
Brake 2 Slipping Alarm.
Load slipping while
Brake 2 is closed.
1. Check the brake.
2.
X*
X
BE7
Brake Welded
Brake Answerback Fault.
At Power Up, Brake
Answerback is on—brake not closed.
1. Check if brake is closed.
2. Check brake answerback
circuitry.
X
BE7-2
Brake 2 Welded
Brake 2 Answerback Fault.
Brake Answerback is on at power-up.
1. Check if brake is closed.
2. Check brake answerback
circuitry.
X
Display
Description
Corrective Action
Fault Alarm