Diamond 10kW Manual
Dynatronix, Inc.
198-1603-03 Rev 01
Page 133 of 150
Notes:
1. This message contains a list of error numbers that have been set since the last
time this message was read. Errors remain in this list until the message is
requested or the error is manually cleared (from the front panel error clear menu
or with the user settings “t” message). Some errors are self clearing diagnostic
errors. Errors that get set and then auto cleared because the error condition
clears will remain in this buffer until they are read. This ensures that the host will
not miss any intermittent errors. Since inactive errors can remain in the “m”
message buffer until the message is read it is possible that an error reported by
the “m” message is not actually active at the time the “m” message is read. The
host can determine which errors are active by continually reading the “m”
message until no error codes are reported. The “m” message only needs to be
poll
ed when the “d” readings message reports that there are faults to report.
2. This is a variable length message, dependent on the number of alarms in the
alarm status buffer.
3. Use the table of alarms to determine what each alarm code means.
4.
The channel ID ‘a’ should always be zero.
5. The error number is a 16 bit integer containing a 12 bit error code and a 4 bit
error source. The 12 bit error code is a unique number that can be looked up in
the error code table to determine what issue is being reported. The definition of
the 4 bit error source is dependent on the error. For process related errors (like
tolerance errors) the error source will indicate the associated output channel that
caused the error. For errors related to inverter hardware the error source will
indicate which inverter control flagged the error. If the error source value is zero,
then the error number is not associated with a specific output channel or inverter.
Example: Error number 4187 translated to binary is
0001
0000 0101 1011. The
four MSBits (in bold) indicate an error source of 1. The remaining 12 bits indicate
an error code of 91. Error code 91 is a voltage tolerance error, the output voltage
is less than the voltage setting by more than the tolerance setting. The error
source value of one indicates that this error was set by output channel one.