Lenze c300 - Manual (Page 68)

Lenze · Controller | Parameter setting & programming · Reference Manual · DMS 1.5 EN · 04/2014 · TD17
68
9 Data integrity in the event of a voltage failure
9.1 UPS functionality of the controllers
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9 Data integrity in the event of a voltage failure
9.1 UPS functionality of the controllers
9.1.1 Internal UPS (for Controllers without UPS connection)
In case of a voltage failure, retain/persistent variables, logbook data and visualisation data (e.g.
trends alarms) are saved.
The Controllers 3221 C/3231 C have an internal buffer capacitor for the short-time buffering of the
data.
The Controllers c300/p300/p500 are equipped with a high-capacity, internal UPS for the storage of
data in the event of a voltage failure. This makes external energy storage dispensable. Voltage
fluctuations cannot be compensated for.
The UPS behaviour of the internal UPS is preset. Parameter setting is not possible/required.
Controller UPS functionality Saves backup files to ...
3221 C Internal capacitor for the short-time buffering of
data
MRAM (Magnetoresistive Random Access
Memory)
3231 C
3241 C
External battery pack (ACCU-PACK) or capacitor
pack (CAPS-PACK)
Memory card
c300 Internal capacitor
p300
p500