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IMPULSE
®
•G+ Mini Technical Manual
November 2020
Page 137
dnE
Drive not ready
User is trying to give a run command while a
FWD or REV is present at Power Up.
1.
Check input terminals.
2.
Check H01.01 to H01.07 programming.
EF
(flashing)
External Fault
Both FORWARD/UP and REVERSE/DOWN
commands are input at same time for 500 msec
or longer.
1.
Check control input wiring.
2.
Check the sequence of operation.
EF0
Option Card External
Fault
External fault input from communication option
card.
1.
Check communication option card connection
and signals.
2.
Check external device for any fault(s)
EF1
External
Fault 1
External fault occurs on Terminal S1.
1.
Check H01.01 for proper programming.
2.
Check the conditions for input terminal S1
(U01.10).
EF2
External
Fault 2
External fault occurs on Terminal S2.
1.
Check H01.02 for proper programming.
2.
Check the conditions for input terminal S2
(U01.10).
EF3
External
Fault 3
External fault occurs on Terminal S3.
1.
Check H01.03 for proper programming.
2.
Check the condition for input terminal S3
(U01.10).
EF4
External
Fault 4
External fault occurs on Terminal S4.
1.
Check H01.04 for proper programming.
2.
Check the condition for input terminal S4
(U01.10).
EF5
External
Fault 5
External fault occurs on Terminal S5.
1.
Check H01.05 for proper programming.
2.
Check the condition for input terminal S5
(U01.10).
EF6
External
Fault 6
External fault occurs on Terminal S6.
1.
Check H01.06 for proper programming.
2.
Check the condition for input terminal S6
(U01.10).
EF7
External
Fault 7
External fault occurs on Terminal S7.
1.
Check H01.07 for proper programming.
2.
Check the condition for input terminal S7
(U01.10).
GF
Ground Fault
Ground Fault.
Current shorted to ground
exceeded 50% of rated current on output side of
the VFD. Setting L08.09 to 1 enable ground fault
detection in models 2025 and 4014 or larger.
1.
Disconnect motor from VFD and check it for
shorts using a megger.
2.
Ensure that R/C Surge Suppressors are used
across all brake contactor coils to prevent
disturbance by electrical transients.
Hbb
Hardware BB
Hardware Base Block.
The Safe Disable Input
channel is open.
1.
Check if external safety circuit tripped and dis-
abled the VFD.
2.
If the Safe Disable function is not utilized, check
if the terminals HC and H1 are linked.
LC
Load Check Err
Load Check Alarm.
This fault is displayed when
the load detected is greater than the measured
load during the Load Check set up process for a
particular LC Zone.
1.
Reduce Load.
2.
Decrease the LC Sensitivity (higher value).
3.
Increase the settings for the particular LC Zone
where the fault occurred by 1.
LC dn
LC 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 completes the LC set up process
-
Fault
Fault or Indicator Name/Description
Corrective Action
Summary of Contents for IMPULSE G+ Mini
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