3.5 Absolute Battery
B3-13
ME0384-4A
(Example) When used under the following conditions: "Monday ~ Friday: 8 hours charging /
16 hours discharging per day, Saturdays and Sundays: discharging"
Connected axis: When not RCA2-***NA
(1) If Parameter No. 155 is set to 3...
Total charge: 8 [h] operation per day x 1.6 [h] retention time per 1 hour charge x 5 [days]
weekdays = 64 [h]
Total discharge: Nightly down time 16 [h] x weekdays 5 [days] + weekend down time
48 [h] = 128 [h]
→ If starting on Monday from a fully charged state, the total discharge amount exceeds
the total charge amount by 64 [h] in one week, so the full charge amount decreases
by 64 [h] each week. Accordingly, a full charge is required every 10 days.
(2) If Parameter No. 155 is set to 2...
Total charge: 8 [h] operation per day x 3.3 [h] retention time per 1 hour charge x 5 [days]
weekdays = 132 [h]
Total discharge: Nightly down time 16 [h] x weekdays 5 [days] + weekend down time
48 [h] = 128 [h]
→ If starting on Monday, the total charge amount exceeds the total discharge amount, so
there is no need to maintain continuous full charge. Charge increases by 4 [h] each
week.
[Absolute Battery Voltage Drop Detection]
If the absolute battery voltage drops, error detection is performed in accordance with the voltage.
Voltage Output signal status Alarm code
2.5V ±8%
or less
Alarm signal *ALM OFF
0EE "Absolute encoder error detection 2"
or
0EF "Absolute encoder error detection 3"
If an alarm occurs, absolute reset must be performed after replacing the battery.
RCON checks the battery voltage at power ON. Detection does not occur even if the battery
voltage drops to the alarm level while RCON is energized.
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