IAI America ERC3 - Manual (Page 309)

Chapter 6
Adjustment of Operation
6.1
Absolute Reset and
Absolute Battery
299
(Example) From Monday to Friday ; charge for 8 hours per day, discharge for 16 hours,
Saturday and Sunday ; use with discharge
1) Parameter Setting Value: if it is 3…
Full charge amount ; 24 [h] × 3 [day] = 72 [h]
Total charge amount ; 8 [h] × 1.6 [h] × 5 [day] = 64 [h]
Total discharge amount ; 16 [h] × 5 [day] + 48 [h] = 128 [h]
ĺ Assuming to have a battery charge for 72 hours before Monday, and starting on
Monday with a full charge, it is necessary to have 3 days of battery charge periods in
10-day cycle.
2) Parameter Setting Value: if it is 2…
Total charge amount ; 8 [h] × 3.3 [h] × 5 [day] = 132 [h]
Total discharge amount ; 16 [h] × 5 [day] + 48 [h] = 128 [h]
ĺ It is not necessary to have a continuous full charge if starting on Monday.
4-hour charge is stored every week. The upper limit is the reference value for the
retaining duration after fully charged.
(3) Absolute Battery Voltage Drop Detection
If the voltage of the absolute battery is dropped, the error detection responding to the voltage is
held.
Voltage PIO Signals Alarm
3.1V r8% or less Alarm output *ALM
(Note 1) OFF 0EE Absolute Encoder Error
Detection 2
or
0EF Absolute Encoder Error
Detection 3
(Note 1) *ALM are the signals of active low.
After the power is supplied to the controller, they are usually ON and turned OFF when
an error is detected.
Replace the battery before alarm is generated due to the lamp display by *ALM signal of
PLC.
If the alarm is generated, it will be necessary to absolute reset after the battery
replacement.
Normal
3.6V
3.1V
Alarm
occurred
Battery voltage
*ALM signal OFF
Absolute reset
required
*ALM signal
ON
OFF