Troubleshooting
147
Name
Description
Possible Causes & Corrective Action
Setup Fault 6
This fault is declared if the multi-step
speed references have exceeded a
defined limit, which is defined in terms
of a percentage of contract speed
(CONTRACT CAR SPD parameter).
Check Parameters Settings:
➲
Check SPEED COMMAND1-16 (A3)
parameters, if greater than 110% of
CONTRACT CAR SPD (A1) parameter
Setup Fault 7
This fault is declared if the run logic
inputs are defined incorrectly. You
can either choose group #1 (RUN and
UP/DWN) or group #2 (RUN UP and
RUN DOWN). But you cannot mix and
match or this fault will be declared.
Check Parameters Settings:
➲
Check configurations of logic inputs (C2) –
either RUN & UP/DWN or RUN UP & RUN
DOWN
Setup Fault 8
This fault is declared if the DIR
CONFIRM (C1) parameter is enabled
and any of the following conditions are
not met:
•
A logic input (C2) must be
assigned to RUN UP.
•
A logic input (C2) must be
assigned to RUN DOWN.
•
The SPD COMMAND SRC (C1)
parameter must be set to
ANALOG INPUT
... Confirms proper set-up of Analog
Speed Command direction confirm
function
Check Parameters Settings:
➲
Check configurations of logic inputs (C2) for
two logic input defined as RUN UP & RUN
DOWN
➲
Verify SPD COMMAND SRC (C1) is set to
ANALOG INPUT
If nuisance fault and not using Up-Down Confirm
function disabled by setting the DIR CONFIRM
(C1) parameter to DISABLED
Setup Fault 9
[open-loop]
This fault is following two formulas are
not satisfied:
<
<
VOLTS
MTR
RATED
VOLTS
MID
MOTOR
VOLTS
MIN
MOTOR
:
<
<
FREQ
EXCIT
RATED
FREQ
MID
MOTOR
FREQ
MIN
MOTOR
... Checks the V/Hz pattern
Check Parameters Settings:
➲
Check RATED MTR VOLTS (A5) parameter
for correct setting
➲
Check MOTOR MID VOLTS (A5) parameter
for correct setting
➲
Check MOTOR MIN VOLTS (A5) parameter
for correct setting
➲
Check RATED EXCIT FREQ (A5) parameter
for correct setting
➲
Check MOTOR MID FREQ (A5) parameter
for correct setting
➲
Check MOTOR MIN FREQ (A5) parameter
for correct setting
Speed Dev
(alarm)
[closed-loop]
The speed feedback is failing to
properly track the speed reference
.
•
Sensitivity determined by SPD
DEV HI LEVEL (A1) parameter.
Any active faults?
➲
Check if any active faults in F1 sub-menu
Check Parameters Settings:
➲
Verify SPD DEV HI LEVEL (A1) is set to the
proper level.
Does “Hit Torque Limit” message appear?
➲
If message appears during running, verify a
fault has not occurred.
➲
Then, increase the torque limit parameters
MTR TORQUE LIMIT and REGEN TORQ
LIMIT (A1) – maximum 250%