IDEC MICRO/I HG4G-CJT22 F-B Series, User Manual, Page: 1640 / 1665

1 Error Messages
36-4
WindO/I-NV4 User’s Manual
1.2 Low Battery Voltage
An internal battery maintains clock settings and log data in the MICRO/I. When the battery runs out, keep register
data, log data and other backup data will be cleared, and the contrast is reset to the default value. If this happens,
the following message is displayed when the MICRO/I is powered up, so take the indicated action.
In this case, Bit 14 (backup data error) of address 2 in System Area 2 is set, and it is reset when MICRO/I
is powered on.
The following warning messages will be displayed before the battery is dead.
In this case, the Bit 12 (Replace battery error) or Bit 13 (Replace battery error) of address 2 in the System
Area 2 is set, and it is set whenever the MICRO/I is powered on.
To display the warning message, in the Project Settings dialog box, on the System Settings tab, select the
Battery warning message check box.
Message Description
Backup data lost Replace the battery.
The Log Data and Calendar Data are lost. Set the clock again.
In case of storing Keep Memory and Keep Relay to the flash memory using HMI Special Internal Relay
LSM10, stored data is transferred to the memory automatically when Backup data is lost.
Message Description
Replace battery The remaining battery revel is low. Replace the battery in a short time.
Replace battery
(Battery level LOW) The remaining battery revel is lowest. Replace the battery immediately, otherwise backup
data will be lost.