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Quattro DC Troubleshooting
There are four means of fault annunciation:
Troubleshooting
Faults and Alarms
Two classes of warnings are reported by the
Drive; these are identified as Faults and
Alarms.
An
Alarm is a drive condition worth noting that
may or may not require immediate attention,
but the condition is not severe enough to stop
operating the drive. In many cases, Alarms
will automatically clear when the condition
returns to normal or when the drive is stopped
and restarted.
Faults and Fault Annunciation
A Fault is a severe failure condition that will
stop a drive if it has been running and prevent
the drive from starting as long as it is present.
All faults require some type of action by the
user to clear.
1. A priority message will be seen on the
Digital Operator:
A priority message will overwrite what ever is
currently displayed. The user can clear this
message by pressing any key on the Digital
Operator keypad. If another fault is present,
the next fault will appear as a priority message.
NOTE: Clearing the fault priority message
from the display DOES NOT clear the fault
from the active fault list. The faults must be
cleared by a fault reset before the drive will
run. Setting PRIORITY MESSAGE (C1) to
DISABLE can disable priority Messages.
2. The fault will be placed on the active fault
list which will record and display currently
active faults. The faults will remain on the fault
list until an active fault reset is initiated. The
drive will
not be able to run until all active faults are
cleared.
3. The fault will be placed on the fault history.
The fault history displays the last 16 faults and
a time stamp indicating when each happened.
The fault history IS NOT affected by an active
fault reset or a power loss. The fault history
can be cleared via a user-initiated function.
RUN/FAULT
SUB MENU
DATA ENT
ACTIVE FAULTS
F1 CHARGE FAULT
RUN/FAULT
SUB MENU
DATA ENT
01 CHARGE FAULT
F2 0.0097 hrs
4. The user can assign a fault to an external
logic output. Refer to configuration submenu
item C3.
RUN/FAULT
SUB MENU
DATA ENT
FAULT!
CHARGE FAULT
Fault Clearing
Performing a fault reset can clear most faults.
The fault reset can be initiated by:
• an external logic input
• the serial channel
• automatically by the drive
CAUTION
If the run signal is asserted at the time of a
fault reset, the drive could immediately go into
a run state. However, if the auto-fault reset
function is enabled (FAULT RESET
SRC(C1)=automatic) then the run command
needs to be cycled.
A fault reset can also be performed manually
via the Digital Operator.
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