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Carmanah Technologies Corp. | 250 Bay St, Victoria, BC V9A 3K5, Canada | 1-877-722-8877 |
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G SERIES USER MANUAL
9.0 TROUBLESHOOTING
9.1 BIST Error Codes
The BIST (Built-In Self-Test) is a useful feature of the EMS for troubleshooting. After the BIST has finished, a
code will be displayed on the user interface, which will correspond with one or more results.
If the BIST is run in a low-light environment, it will generate a 0080 error. This does not indicate
an issue with the ambient brightness sensor. Shine a flashlight on the window above the EMS to
avoid this error.
The hexadecimal number that will be displayed after the BIST test is created by adding together the individual
error codes. For example, if there were a charger problem (4000) and a problem with the fixture LED (8000), the
hexadecimal sum would be C000. 4 + 8 =12, which is “C” in hexadecimal.
The BIST codes can be used to assist Carmanah technical support in solving product configuration or
performance issues. Please contact Carmanah technical support if the issue you encounter is not easily solved be
reviewing the information provided in this document.
Code
Error
0002
Temperature check.
Checks that temperature is between 15°C and 35°C. With installation sites
frequently having temperatures outside of this range, code 0002 will often be generated while there
is no real issue with temperature.
0008
Battery check.
Checks that battery voltage is between 11.7V and 17.268V (max charge voltage at
-40°C). Nominal is 12.6 volts when unloaded and not charging.
0010
Checks that V supply on EMS control board is between 3.2V and 3.4V. Nominal is 3.3 volts.
0020
Keypad check.
Checks all pushbuttons on user interface (up, down and enter).
0080
Ambient Brightness Sensor (ABS) check.
Checks that the current lux measured by the ABS is
above the minimum (90lux).
4000
Charger check.
Runs charger at two set points. Checks that the charge current stays within
allowed range (10mA to 4.5A). Checks that the solar voltage is stable (less than 50mV change
between set points).
8000
LED fixture check.
Enables one bank at a time. Checks that the LED voltage is between 6V and
28V. Checks that the current is close to the set intensity. If a single fixture is used, and an
alternating flash pattern is programmed, the system will generate an error because it expecting to
see current flowing through two fixtures in alternation.