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ELCSoft ladder diagram for program editing and exclusive transmission cables to
connect with ELC-PV/ELC2-PV for program transmission, ELC control, program
monitoring and so on.
Troubleshooting & Indicator Description
Based on the indicators on the front panel, please check the following for errors:
POWER indicator
When ELC-PV/ELC2-PV is powered, the POWER LED indicator on the front
panel will be on (in green). If this indicator is not on or the ERROR indicator keeps
flashing when ELC-PV/ELC2-PV is powered indicates that the power supply +24V
are insufficient or DC power supply 24V is overloaded. In this case, change
another 24V DC power supply. If the indicator is still off at this time, your
ELC-PV/ELC2-PV is malfunctioned. Send your ELC-PV/ELC2-PV back to your
distributor for repair.
RUN indicator
Check your ELC-PV/ELC2-PV status. When ELC-PV/ELC2-PV is running, this
indicator will be on. You can use ELC-HHP, the ladder diagram editing program or
the switch on the panel to RUN or STOP ELC-PV/ELC2-PV.
ERROR indicator
If you enter an incorrect program into ELC-PV/ELC2-PV or use instructions or
devices that exceed their range, this indicator will flash (approx. every 1 second).
When this happens, you have to obtain the error code from D1004 and save the
address where the error occurs in register D1137 (if the error is a general circuit
error, the address of D1137 will be invalid). Find out the cause of the error, amend
the program and resend the program to ELC-PV/ELC2-PV. If you cannot connect
to ELC-PV/ELC2-PV and this indicator keeps flashing quickly (approx. every 0.2
second), it means that the 24 Vdc power voltage is insufficient. Please check if the
24V DC power supply is overloaded.
If the ERROR indicator is on, you have to check the special relay M1008. If
M1008 is on, it indicates that the execution time of program loop exceeds the
preset time-out (in D1000). In this case, turn the RUN/STOP switch to STOP,
check the special register D1008 and obtain the location in the program where the
time-out takes place. Please refer to the WDT instruction to solve this problem.
After amending the program, you only need to resend the program to stop the
indicator from flashing. If the indicator still keeps flashing at this time, switch off
the power and check if there is any interference existing or conductive matter
inside ELC-PV/ELC2-PV.
For details of error codes (in D1004, hex coding), see “ELC System Manual:
Programming”.
BAT.LOW indicator
The rechargeable lithium-ion battery in ELC-PV/ELC2-PV is mainly used on the
latched procedure and data storage.
The lithium-ion battery has been fully charged in the factory and is able to retain
the latched procedure and data storage for 6 months. If ELC-PV/ELC2-PV has not
been powered for less than 3 months, the life of the battery does not decrease. To
prevent the electricity emitted by the battery from resulting in short life of the
battery, before disconnecting ELC-PV/ELC2-PV for a long time, you need to
power ELC-PV/ELC2-PV for 24 hours to charge the battery.
If the lithium-ion battery is put in an environment in which temperature is above 40
°C, or if it is charged for more than 1000 times, its effect becomes bad, and the
time for which the data can be stored is less than 6 moths.
The lithium-ion battery is rechargeable, and has a longer life span than an
ordinary battery. However, it still has its own life cycle. When the power in the
battery is not sufficient to retain the data in the latched area, please send it to the
distributor for repair.
Please be aware of the date of manufacturing. The charged battery can sustain
for 6 months from its date of manufacture. If you find that the BAT.LOW indicator
stays on after ELC is powered, it means the battery voltage is low and the battery
is being charged. ELC-PV/ELC2-PV has to remain on for more than 24 hours to
fully charge the battery. If the indicator turns from on to “flash” (every 1 second), it
means that the battery cannot be charged anymore. Please correctly process
your data in time and send the ELC back to the distributor for repair.
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