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[Operation Setting]
Operation
Setting
<Caution>
Use the following battery for absolute encoder.
Part No. : DV0P2990 (Lithium battery by Toshiba Battery Co.,
Ltd. ER6V, 3.6V 2000mAh)
<Cautions>
• Be absolutely sure to follow the precautions below since improper use of the battery can cause electrolyte to
leak from the battery, giving rise to trouble where the product may become corroded, and/or the battery itself
may rupture.
1) Insert the battery with its “+” and “–” electrodes oriented correctly.
2) Leaving a battery which has been used for a long period of time or a battery which is no longer usable sitting inside
the product can cause electrolyte leakage and other trouble. For this reason, ensure that such a battery is replaced
at an early date. (As a general guideline, it is recommended that the battery be replaced every two years.)
• The electrolyte inside the battery is highly corrosive, and if it should leak out, it will not only corrode the
surrounding parts but also give rise to the danger of short-circuiting since it is electrically conductive. For
this reason, ensure that the battery is replaced periodically.
3) Do not disassemble the battery or throw it into a fire.
• Do not disassemble the battery since fragments of the interior parts may fly into your eyes, which is
extremely dangerous. It is also dangerous to throw a battery into a fire or apply heat to it as doing so may
cause it to rupture.
4) Do not cause the battery to be short-circuited. Under no circumstances must the battery tube be peeled off.
• It is dangerous for metal items to make contact with the “+” and “–” electrodes of the battery since such
objects may cause a high current to flow all at once, which will not only reduce the battery performance but
also generate considerable heat, possibly leading to the rupture of the battery.
5) This battery is not rechargeable. Under no circumstances must any attempt be made to recharge it.
• The disposal of used batteries after they have been replaced may be subject to restrictions imposed by local
governing authorities. In such cases, ensure that their disposal is in accordance with these restrictions.
4) Close the cover of the battery box.
Close the cover
not to pinch the
connector cable.
Mon. to Sat. 313 days/365 day
Sun. 52 days/365 days
24h
10h 2h 10h 2h
ON
OFF
Power
supply
24h
acb
cbac
a : Current consumption in normal mode 3.6[µA]
b : Current consumption at power failure timer mode
280[µA]
* Power failure timer mode...Action mode in time
period when the motor can respond to max.
speed even the power is off (5sec).
c :
Current consumption at power failure mode 110[µA]
<Reference>
Following example shows the life calculation of the back-up battery used in assumed robot operation.
2000[mAh] of battery capacity is used for calculation. Note that the following value is not a guaranteed value, but
only represents a calculated value. The values below were calculated with only the current consumption fac-
tored in. The calculations do not factor in electrolyte leakage and other forms of battery deterioration.
Life time may be shortened depending on ambient condition.
1) 2 cycles/day
Annual consumption capacity = (10h x a + 0.0014h x b + 2h x c) x 2 x 313 days + 24h x c x 52 days = 297.8[mAh] )
Battery life = 2000[mAh]/297.8[mAh] = 6.7 (6.7159) [year]
Annual consumption capacity = (10h x a + 0.0014h x b + 14h x c) x 313 days + 24h x c x 52 days = 640.6[mAh] )
Battery life = 2000[mAh]/630.6[mAh] = 3.1 (3.1715) [year]
2) 1 cycle/day
(2nd cycle of the above 1) is for rest.