IAI America PCON-CA - Manual (Page 168)

Chapter 6
Absolute Reset and
Absolute Battery
POWER CON
PCON-CA/CFA
160
(Example) From Monday to Friday ; charge for 8 hours per day, discharge for 16 hours,
Saturday and Sunday ; use with discharge
1) If the upper limit setting for the number of encoder revolution is 800 [PRM];
Full charge amount ; 24 [h] *5 [day] = 120 [h]
Total charge amount ; 8 [h] *1.6 [h] *5 [day] = 64 [h]
Total discharge amount ; 16 [h] *5 [day] + 48 [h] = 128 [h]
ψ
Assuming a start with full charge on Monday, it is necessary to fully charge the battery
every 10 days.
2) If the upper limit setting for the number of encoder revolution is 400 [PRM];
Total charge amount ; 8 [h] *3.3 [h] *5 [day] = 132 [h]
Total discharge amount ; 16 [h] *5 [day] + 48 [h] = 128 [h]
ψ 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.
6.2.3 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
2.5V r8% or less Alarm signal *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 *ALML signal
of PLC.
If the alarm is generated, it will be necessary to absolute reset after the battery
replacement.
Normal
3.6V
3.1V
2.5V
Alarm
occurred
Battery voltage
*ALM OFF
Absolute reset
required
*ALM signal
ON
OFF