1 DB1 device series
1.15 Charging the internal DC link capacitors
DB1 variable frequency drive
11/20 MN040031EN
Eaton.com
32
1.15 Charging the internal DC link capacitors
After long storage times or long down times (> 12 months) without a power
supply, the capacitors in the intermediate circuit must be recharged to
prevent damage. To do this, the DB1 variable frequency drive must be sup-
plied with power, with a controlled DC power supply unit, via two mains
connection terminals (e.g. L1 and L2).
In order to prevent the capacitors from having excessively high leakage cur-
rents, the inrush current should be limited to approximately 300 to 800 mA
(depending on the relevant rating). The variable frequency drive must not be
enabled during this time (i.e. no start signal). After this, the DC voltage must
be set to the magnitudes for the corresponding DC link voltage
(U
DC
∼
1.41 x U
e
) and applied for one hour at least (regeneration time).
•
DB1-12…: about 324 V DC at U
e
= 230 V AC
•
DB1-34…: about 560 V DC at U
e
= 400 V AC
1.16 Service and warranty
In the unlikely event that you have a problem with your DB1 variable
frequency drive, please contact your local sales office.
When you call, have the following data ready:
•
the detailed type description of the variable frequency drive
(see rating plate),
•
the date of purchase,
•
a detailed description of the problem which has occurred with the
variable frequency drive.
If some of the information printed on the rating plate is not legible, please
state only the data which are clearly legible.
Information concerning the warranty can be found in the Eaton Industries
GmbH Terms and Conditions.
Break-Down Service
Please contact your local representative:
or
Hotline After Sales Service
+49 (0) 180 5 223822 (de, en)