Pro-face Pro-face ST Series, User Manual

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Chapter 7 RUN Mode and Errors
7-21
7.5.4 Clock Setup Error
This message displays when the lithium backup battery’s voltage for the internal clock runs out. To reset the
error, you need to turn the ST’s power OFF and then ON again. Leave the ST ON continuously and the bat-
teryís charge will become sufficient for backup after 24 hours, and will be fully charged in approximately 96
hours. If the battery is incorrectly replaced, the battery may explode. To avoid the danger, please do not
replace the battery yourself. When the battery needs a replacement, please consult with your local ST distrib-
utor.
After changing the backup battery, set up the internal clock.
• In Hitachi Industrial Equipment System’s HIDIC H (HIZAC H) Series, the error code is divided
into 2 bytes, whereas the ST Error Number is composed of 1 byte codes.
E.g.
When the Display Error Number is 8*, or 5*, use only the left column as the error number.
• In Toshiba's PROSEC T Series, the Error Code is 4 characters long; on the ST, Error Numbers
are changed to and displayed in Hexadecimal.
• With the Allen-Bradley PLC-5 and SLC-500 Series, the EXT/STS error codes have been re-
mapped to start at D0 HEX, so they will not conflict with other error codes. When looking up
the error number in the PLC manual, subtract D0 h from the ST error code to find its error value.
E.g.
SEE
6 Initializing the ST (Page 6-1)
• The lifetime of the backup battery depends on the ambient temperature and the amount of cur-
rent being charged and used. The table below gives a general indication of how long the battery
will last.
Battery Ambient
Temperature
40 o C or lower
Unit Ambient
Temperature
25 o C or lower
Expected
Lifetime
10 years or
longer
Expected
Lifetime
10 years or
longer
0 1 0 7 1 7
Reply Return Display
Command Code Error No.
ST PLC
Error Code Error Code
D1 01
EA 1A