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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is in the RUN mode.
“BAT.LOW” indicator (ELC-PC/PA/PH)
When the battery voltage is low, the “BAT.LOW” LED will be on. Change the battery within 3
minutes of removing the old battery to retain the ELC’s internal user programs and data).
Recover mechanism (ELC-PC/PA/PH)
If the battery is in low voltage (before the power is switched off when the BAT.LOW indicator is
on) and the power is off for more than 1 minute, ELC will automatically restore the data in the
latched area in the program and transfer Flash ROM into SRAM memory next time when it is
re-powered.
Battery life: (ELC-PC/PA/PH)
Temperature (ºC)
0
25
50
70
Life
(year) 9 8 6 5
“BAT.LOW” indicator (ELC-PV)
1. The rechargeable lithium-ion battery in the ELC-PV controllers is mainly used for the
latched memory and data storage.
2. The lithium-ion battery has been fully charged in the factory and is able to retain the
latched memory and data storage for 12 months. If ELC-PV has not been powered and
used for more than 12 months, the battery will be out of power upon normal consumption
and the memory and data will be lost.
3. The lithium-ion battery has a longer life span than ordinary batteries; therefore there is no
need to change the battery frequently. You can charge the battery at any time without
having to worry about a decrease in chargeability. You can also recharge the battery even
when there is still power in the battery. The battery is charging when power is supplied to
the controller.
4. Please be aware of the date of manufacturing; the charged battery can sustain for 12
months from this date. If you find that the BAT.LOW indicator stays on after ELC is
powered, the battery voltage is low and the battery is being charged. ELC-PV controller
must remain powered for more than 24 hours to fully charge the battery. If the indicator
turns from on to flashing (once every second), it indicates that the battery cannot be
charged anymore. Save your program and send the ELC back to Eaton for a new battery.
Precision of the Real Time Clock (RTC): (ELC-PC/PA/PH/PV)
At 0
°
C/32
°
F, less than 117 seconds error per month.
At 25
°
C/77
°
F, less than 52 seconds error per month.
At 55
°
C/131
°
F, less than 132 seconds error per month.
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