E L C O p e r a t i o n M a n u a l
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MN05003006E
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that exceed their range, this indicator will flash (approx. every 1 sec.). When this happens,
obtain the error code from D1004 and the address where the error occurred in register
D1137 (if the error is a general circuit error, the address of D1137 will be invalid).
Determine the cause of the error, correct the program and download the program to the
ELCM controller. If you cannot connect to the ELCM and this indicator continues to flash
quickly (approx. every 0.2 sec.), there may be insufficient 24VDC power from the internal
power supply.. Verify the total current draw from all connected devices.
2. For details on error codes see the “ELC Programming Manual” and the hex error code
descriptions for D1004.
3.
When the ERROR LED is on (not blinking), Check the state of special relay M1008 in the
ELC. If it is On, it indicates that the execution time of the program has exceeded the
watchdog time-out setting (set in D1000). Turn the ELCM RUN/STOP switch to STOP,
and view special data register D1008 to determine which program Step the error occurred
on. The ”WDT” instruction can be used to solve the problem if the watchdog time is being
exceeded, by resetting the watchdog timer during the program. Or, simply move a larger
watchdog timer value to D1000. The default is 200 (200ms).
“Input” indicator
The On/Off state of each input point is indicated by an LED on the module, or the status may be
viewed by going online with the controller with the programming software. If the LED for a
particular input does not appear to be working properly, use the programming software to verify
the state of that input. Also, check the I/O wiring and the power source used to drive the inputs.
“Output” indicator
The On/Off status of each output point is indicated by an LED. When the output indicator does
not reflect the correct state of an output, check the following:
1. The output may be connected to a short-circuited load, or the output has failed.
2. The output may be wired incorrectly or the screws were not properly tightened.
Accuracy (month/second) of RTC
Temperature (ºC/ºF)
0/32
25/77
55/131
Max. inaccuracy (second)
-117
52
-132
