IAI MCON-C - Absolute Encoder Backup Specifications; Absolute Battery Charge

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7.2.1 Absolute encoder backup specifications
Item Specifications
Battery model AB-7
Quantity 1 pc/axis (8 units max. / 8 axes)
Battery voltage 3.6V
Current capacity 3300mAH
Nominal 3.6V 3700mAH
Reference for battery replacing timing
(Note 1)
Approx. 3 years
(It varies significantly by the effects of the
usage condition)
Note 1 Replace the battery regularly.
7.2.2 Absolute Battery Charge
Please have the battery charged for more than 72 hours before using for the first time or after
replacing with a new one. The battery gets charged while the controller is supplied with 24V
power.
Data holding time (Reference time when battery is new)
Upper limit of encoder revolution at
power-off [rpm]
Parameter
No.155
setting
When the connected
actuator is a model
other than RCA2-***NA;
When the connected
actuator is RCA2-***NA;
Reference for
battery retaining
time [days]
Holding time per
hour of battery
charge time
(reference) [H]
0 100 75 20 6.6
1 200 150 15 5.0
2 400 300 10 3.3
3 800 600 5 1.6
Leaving the controller power OFF for more than the data holding time will lead to a loss of the
data. Have the battery charged as early as possible.
There is life to the battery and the duration for data holding will decrease. Replace the battery
with a new one if the retaining time is remarkably dropped even with enough charging time.
(Example) From Monday to Friday : charge for 8 hours per day, discharge for 16 hours,
Saturday and Sunday : When using with discharge
Connected axis : Any model except for RCA2-***NA
1) If parameter No.155 = 3 setting;
Total charge amount : Operation hours per day 8 [H] × Retaining time per charge for 1
hour 1.6 [H] × Weekday 5 [days] = 64 [H]
Total discharge amount : Stopped time during night 16 [H] x Weekday 5 [days] + Stopped
time on Saturday and Sunday 48 [H] = 128 [H]
Total discharge amount : 16 [h] × 5 [day] + 48 [h] = 128 [h]
→ If starting on Monday with a full-charge, the total amount of the discharge in a week
exceeds total amount of battery charge in 64 [H], thus the fully charged storage
decreases by 64 [H]. Therefore, it is necessary to have the battery fully charged in
every 10-day period.
2) If parameter No.155 = 2 setting;
Total charge amount : Operation hours per day 8 [H] × Retaining time per charge for 1
hour 3.3 [H] × Weekday 5 [days] = 132 [H]
Total discharge amount : Stopped time during night 16 [H] x Weekday 5 [days] + Stopped
time on Saturday and Sunday 48 [H] = 128 [H]
→ If starting on Monday, because the total amount of charge has exceeded the total
amount of discharge, it is not necessary to have a continuous full charge. 4-hour
charge is stored every week.
Chapter 7 Absolute Reset and Absolute Battery