Memory Card Battery - Omron CV500 Installation Manual

Memory Card Battery

4-2 Memory Card Battery
Caution
!
Battery Replacement
Caution
!
1, 2, 3...
Note The maximum life of the battery is 5 years, regardless of whether power is
supplied to the CPU. The memory backup duration when power is not supplied
to the CPU varies with the ambient temperature, and also depends on whether
the Expansion DM Unit is mounted to the CPU (CV1000 only).
Details of the minimum lifetime of the battery are provided in Appendix B Specifi -
cations .
The RAM Memory Card is provided with a backup memory battery.
When the Memory Card is mounted to the CPU and the battery life is close to
expiring, the CPU ALARM indicator will blink, bit A42616 will turn ON, and the
message "BATT LOW" will appear on the Programming Device. When this oc-
curs, replace the battery within one week to avoid loss of data.
The entire replacement must be completed within one minute to ensure that the
data will not be lost.
Do not short circuit, charge, disassemble, or expose the battery to heat. The bat-
tery fluid is flammable and if mishandled, may cause a fire or explosion. Do not
incinerate the battery after use.
Steps 4 through 7 of the following procedure must be completed within 1 minute.
If the new battery is not inserted within one minute, the contents of memory will
be lost.
1. If the Memory Card (M/C) indicator is not lit, press the Memory Card power
supply switch to turn on power to the Memory Card and leave it on for at least
10 seconds.
2. Press the Memory Card power supply switch to turn off the Memory Card
indicator.
3. Press the Memory Card eject button and remove the Memory Card.
4. Release the battery case by inserting the tip of a pen (or similar object) in the
slot on the side of the Memory Card as shown.
5. Remove the old battery from the case.
6. Install the new battery as shown, with the positive terminal to the top.
Battery
7. Insert the battery case back into the Memory Card. Be sure that the case is
installed all the way in.
Battery case
Slot
Battery case
Section 4-2
71