Omron SYSMAC CS Series Operation Manual page 620

Replacing User-serviceable Parts
CS1-H CPU Units
Model Time that
CPU Unit
power is ON
CS1H-CPU@@H 0%
30%
50%
70%
100%
CS1G-CPU@@H 0%
30%
50%
70%
100%
Low Battery Indicators
582
Minimum lifetime
626 days (1 yr, 8 mo)
886 days (2 yr, 5 mo)
1,225 days (3 yr, 4 mo) 1,855 days (5 yr)
1,855 days (5 yr)
1,855 days (5 yr)
780 days (2 yr, 1 mo)
1,101 days (3 yr)
1,519 days (4 yr, 1 mo) 1,855 days (5 yr)
1,855 days (5 yr)
1,855 days (5 yr)
Note 1. The minimum lifetime is the memory backup time at an ambient tempera-
ture of 55°C. The typical lifetime is the memory backup time at an ambient
temperature of 25°C.
2. For CS1-H CPU Units, there is no difference between the minimum life-
times and the minimum times to battery error detection.
3. The battery lifetime and low battery voltage detection will vary under appli-
cation at high power-supply rates.
Memory Backup
Time (Days)
2000
1800
1600
1400
1200
1000
800
600
400
200
0
0
If the PLC Setup has been set to detect a low-battery error, the ERR/ALM
indicator on the front of the CPU Unit will flash when the CPU Unit detects that
the battery is nearly discharged.
(CS1 CPU Unit indicators shown above.)
Typical lifetime
1,855 days (5 yr)
1,855 days (5 yr)
1,855 days (5 yr)
1,855 days (5 yr)
1,855 days (5 yr)
1,855 days (5 yr)
1,855 days (5 yr)
1,855 days (5 yr)
CS1H-CPU@@H (Minimum lifetime)
CS1H-CPU@@H (Typical lifetime)
CS1G-CPU@@H (Minimum lifetime)
CS1G-CPU@@H (Typical lifetime)
20 40 60
Power-supply rate (%)
Section 12-2
Min. time for Time from battery
battery error error detection to
detection complete discharge
626 days 5 days
886 days 5 days
1,245 days 5 days
1,855 days 5 days
1,855 days 5 days
780 days 5 days
1,101 days 5 days
1,519 days 5 days
1,855 days 5 days
1,855 days 5 days
80 100