IMPULSE•G+/VG+ Series 4 Technical Manual
November 2022
Page 197
HBB or HBBf
Hardware Base
Block
Hardware Base Block.
The flashing Hardware
Base Block signal is a result of either of the Safe
Disable inputs being open. The motor will begin
coasting when the Hardware Base Block signal is
open, and the brake relay digital output will open.
1. Check signal status at the
input terminals H1 and H2.
2. Check the Sink/Source
Selection for the digital inputs
(
).
3. If the Safe Disable function is
not utilized, verify that H1 and
H2 jumpers are installed
correctly (
4. Replace either the control
board or the entire VFD.
X
HCA
High Current
High Current Alarm.
VFD current exceeded
overcurrent warning level (150% of the rated
current).
1. Reduce the load.
2. Check the motor capacity.
X
KLX
Klixon
Klixon Circuit Alarm.
Input by MFDI H01-0x =
56 or 57.
1. Check Motor for Overtemp.
2. Check Klixon Circuit.
X
LC
Load Check Err
Load Check Fault.
Load is greater than specified
amount.
Alarm or fault defined by C05-02.
1. Reduce Load.
2. Check Load Check sequence
setup (C05-xx).
X
X
LC Done
Load Check Done
Load Check Done Alarm.
This alarm is
displayed after the LC set up process is done.
The alarm will clear when the Down command is
pressed and complete the LC set up process.
None.
X
LF
Output Phase Loss
An open phase occurred at the VFD output.
1. Check for broken wires in
output cable.
2. Check for open winding in the
motor.
3. Check for loose terminals
X
LF2
Output Current
Imbalance
Output Current Imbalance.
One or more of the
phases in the output current are lost.
1. Check for faulty wiring or poor/
loose connections on the
output side of the VFD.
2. Correct the wiring.
3. Measure the line-to-line
resistance for each motor
phase. Ensure all values
match.
4. Replace the motor.
X
LL1
Lower Limit 1 Err
Lower Limit 1—SLOW DOWN Indicator.
Lower
Limit 1—SLOW DOWN is input (switch status is
changed).
1. May not require corrective
action.
2. Check the Limit Switches
position.
3. Check the Limit Switches
condition.
X
LL2
Lower Limit 2 Err
Lower Limit 2—STOP Indicator.
Lower Limit 2—
STOP is input (switch status is changed).
1. May not require corrective
action.
2. Check the Limit Switches
position.
3. Check the Limit Switches
condition.
X
Display
Description
Corrective Action
Fault Alarm
Содержание Impulse G+ series 4
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Страница 246: ...IMPULSE G VG Series 4 Technical Manual November 2022 Page 246 Figure B 8 Figure B 9 Figure B 10 Figure B 11...
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