Saia-Burgess Controls AG
Hardware manual for PCD3 series │ Document 26-789 ENG19│ 2018-06-29
Battery change at the PCD3.M5xx0/M6xx0
Maintenance
8-2
8
8.1 Battery change at the PCD3.M5xx0/M6xx0
PCD3 components are maintenance-free, except for a few CPUs (PCD3.Mxxx0),
where the battery needs to be replaced from time to time.
PCD3 components contain no parts that can be replaced by the user. If hardware
problems occur, the components should be returned to Saia Burgess Controls.
Theresources(registers,ags,timers,counters,etc.)andpartly,alsotheuser
program and texts/DBs, are stored in the RAM. To ensure that they do not get lost
during a power failure and (if any) the hardware clock continues to run, the PCD3
isequippedwithabuercapacitor(SuperCap)orabuerbattery:
CPU type
PCD3.M3xx0 Super Cap (soldered, maintenance free) 4 hours
1)
PCD3.M5xx0/M6xx0 Lithium Battery Renata CR 2032
+ Super Cap (soldered in)
1…3 years
2)
1) The total charge time is about 10 minutes
2) Dependingontheambienttemperature,thehigherthetemperature,theshorterthebueringtime
- For new controllers, the batteries are included in the package and must be used
during commissioning. Note the polarity of the batteries:
- Insert button batteries CR 2032 from Renata so that the positive pole is visible
The CPU with lithium batteries are not maintenance free. The battery voltage is
monitored by the CPU.
The LED BATT lights up and the XOB 2 is activated when:
● the battery voltage is below 2.4 V or higher than 3.5 V
● the battery is discharged or has an interruption
● the battery is missing
We recommend changing the battery while the Saia PCD
®
is live, so no data loss
occurs.
Ordering information:
Type Description
4 507 4817 0
Lithium battery for PCD processor units
(RENATA button type CR 2032)
2)
2
) Shelf life 1…3 years. Depending on the ambient temperature, the higher the temperature, the shorter the
bueringtime
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