Trane Tracer CH530 User Manual page 51

Table 6 - Main Processor - Boot Messages and Diagnostics
DynaView Display Message
Boot Software Part
Numbers:
LS Flash --> 6200-0318-04
MS Flash --> 6200-0319-04
Err2: RAM Pattern 1 Failure
Err2: RAM Pattern 2 Failure
Err2: RAM Addr Test #1
Failure
Err2: RAM Addr Test #2
Failure
No Application Present
Please Load Application...
App Present. Running
Selftest....
Selftest Passed
App Present. Running
Selftest...
Err3: CRC Failure
A Valid Configuration is
Present
Err4: UnHandled Interrupt
Restart Timer:
[3 sec countdown timer]
CG-SVU02C-E4
Diagnostics
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.
There were RAM errors detected in RAM Test Pattern #1.
// Recycle power, if the error persists, replace MP .
There were RAM errors detected in RAM Test Pattern #2.
//Recycle power, if the error persists, replace MP .
There were RAM errors detected in RAM Address Test #1.
// Recycle power, if error persists, replace MP .
There were RAM errors detected in RAM Address Test #2.
//Recycle power, if the error persists, replace MP .
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.
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.
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 .
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.
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 CH530 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.
Description
Troubleshooting
51