Diagnostics
RTAC-SVX01J-EN 167
Main Processor Boot Messages
and Diagnostics
Table 69. Main processor boot messages and diagnostics
DynaView Display Message Description Troubleshooting
A Valid Configuration is Present
A valid configuration is present in the MP's nonvolatile memory. The configuration is a set of variables and
settings that define the physical makeup of this particular chiller. These include: number/airflow,/and type
of fans, number/and size of compressors, special features, characteristics, and control options.
// Temporary display of this screen is part of the normal power up sequence.
App Present.
Running Selftest.…
Selftest Passed
An application has been detected in the Main Processor's nonvolatile memory and the boot code is proceeding
to run a check on its entirety. 8 seconds later, the boot code had completed and passed the (CRC) test.
// Temporary display of this screen is part of the normal power up sequence.
App Present.
Running Selftest…
Err3: CRC Failure
An application has been detected in Main Processor's nonvolatile memory and the boot code is proceeding to
run a check on its entirety. A few seconds later, the boot code had completed but failed the (CRC) test.
//Connect a TechView Service Tool to the MP's serial port, provide chiller model number (configuration
information) and download the configuration if prompted by TechView. Then proceed to download the most
recent RTAC application or specific version as recommended by Technical Service. Note that this error display
may also occur durring the programming process, if the MP never had a valid application any time prior to
the download. If the problem persists, replace the MP.
Boot Software Part Numbers:
LS Flash --> 6200-0318-04
MS Flash --> 6200-0319-04
The "boot code" is the portion of the code that is resident in all MPs regardless of what application code (if
any) is loaded. Its main function is to run power up tests and provide a means for downloading application
code via the MP's serial connection. The Part numbers for the code are displayed in the lower left hand corner
of the DynaView during the early portion of the power up sequence and during special programming and
converter modes. See below. For the EasyView, the extension of the boot code part number is displayed for
approximately 3 immediately following power up.
// This is normal, but you should provide this information when contacting Technical Service about power up
problems.
Converter Mode
A command was received from the Service Tool (Tech View) to stop the running application and run in the
"converter mode". In this mode the MP acts as a simple gateway and allows the TechView service computer
to talk to all the LLIDS on the IPC3 bus.
Err2: RAM Addr Test #1 Failure There were RAM errors detected in RAM Address Test #1. // Recycle power, if error persists, replace MP.
Err2: RAM Addr Test #2 Failure There were RAM errors detected in RAM Address Test #2. //Recycle power, if the error persists, replace MP.
Err2: RAM Pattern 1 Failure There were RAM errors detected in RAM Test Pattern #1. // Recycle power, if the error persists, replace MP.
Err2: RAM Pattern 2 Failure There were RAM errors detected in RAM Test Pattern #2. //Recycle power, if the error persists, replace MP.
Err4: UnHandled Interrupt
Restart Timer:
[3 sec countdown timer]
An unhandled interrupt has occurred while running the application code. This event will normally cause a safe
shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset, clear diagnostics,
and attempt to restart the application and allow a normal restart of chiller as appropriate. // This condition
might occur due to a severe electro-magnetic transient such as can be caused by a near lightening strike. Such
events should be rare or isolated and if no damage results to the CH.530 control system, the Chiller will
experience a shutdown and restart. If this occurs more persistently it may be due to an MP hardware problem.
Try replacing the MP. If replacement of the MP proves ineffective, the problem may be a result of extremely
high radiated or conducted EMI. Contact Technical Service. If this screen occurs immediately after a software
download, attempt to reload both the configuration and the application. Failing this, contact Technical Service.
Err5: Operating System Error
Restart Timer:
[30 sec countdown timer]
An Operating System error has occurred while running the application code. This event will normally cause
a safe shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset, clear
diagnostics, and attempt to restart the application and allow a normal restart of chiller as appropriate.
// See Err 4 above
Err6: Watch Dog Timer Error
Restart Timer:
[30 sec countdown timer]
A Watch Dog Timer Error has occurred while running the application code. This event will normally cause a
safe shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset, clear
diagnostics, and attempt to restart the application allowing a normal restart of chiller as appropriate.
Err7: Unknown Error
Restart Timer:
[30 sec countdown timer]
An unknown Error has occurred while running the application code. This event will normally cause a safe
shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset, clear diagnostics,
and attempt to restart the application allowing a normal restart of chiller as appropriate
Err8: Held in Boot by User Key Press
The boot detected a key press in the center of the DynaView or both the + and - keys pressed on an EasyView
while the MP was in the boot code. Upon seeing this message the user can use Techview to connect to the
MP to perform a software download or another service tool function.
No Application Present
Please Load Application...
No Main Processor Application is present - There are no RAM Test Errors.
// Connect a TechView Service Tool to the MP's serial port, provide chiller model number (configuration
information) and download the configuration if prompted by TechView. Then proceed to download the most
recent RTAC application or specific version as recommended by Technical Service.
Programming Mode
A command was received by the MP from the Tech View Service Tool and the MP is in the process of first erasing
and then writing the program code to its internal Flash (nonvolatile) Memory. Note that if the MP never had
a prior application already in memory, the error code "Err3"will be displayed instead of this, during the
programming download process.
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