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PU-2A USERS
MANUAL EM-9255-C Rev.14
B-4. DIAGNOSTICS
In addition to basic response messages indicated in bracket on the upper line of display, the JX pulse transmitters
provide more concrete diagnostics in case of an error.
When the transmitter is not able to provide a response, the PU-2A indicates “ER” in the bracket as “transmission error”.
Message examples, their meaning and what to do are explained in the following:
access rejected
Reading/writing request denied because it was done for an unaccessible ITEM NO. This
message appears for example when you try to change parameters in MONITOR mode.
WHAT TO DO:
Switch to PROGRAM mode. If the same message appears in the PRO
-
GRAM mode, this ITEM is not accessible.
out of range !!
Parameter setting value is inappropriate, out of available range.
WHAT TO DO:
Set the parameter to an appropriate value.
invalid data
Data set in the PROGRAM mode is invalid.
WHAT TO DO:
Set correct data.
zero >= span
Lower range value is higher than the upper range value. Lower range value must be
lower than the upper range value.
zero not entered
Zero parameter is undefined. This message appears when you try to monitor ITEM NO.
which is unnecessary for the hardware. If it appears even for the ITEM NO. of which the
parameter are used, parameters are destroyed.
WHAT TO DO:
Re-program all of them.
undefined No.
Undefined ITEM No.
still processing
This message appears when you switch from MONITOR mode to PROGRAM mode and
return to the PROGRAM immediately. There is a preset delay factor for transition from
MONITOR to PROGRAM for completing the last measuring and computation in the
MONITOR mode.
parameter error
One or more parameters necessary for minimal operation are missing.
WHAT TO DO:
Check all the parameters.
There are possibilities of hardware failure when the following messages are displayed. Contact local sales representative
or M-System.
calculation jam
One measuring is over before the last one.
EEPROM sum err
Check sum error of EEPROM. Data area for parameters are destroyed and unrecovered.
EEPROM read err
(EEPROM time out)
Cannot read EEPROM.
EEPROM write err
Cannot write in EEPROM.
PCB mismatching
PCB ID No. does not match specifications.
device type err
Wrong transmitter type No. is registered.
PIT error !!
Counter setting of internal IC destroyed.
