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VACON® 1000
Operating Guide
Table 12: Maintenance Schedule
Storage temperature
<20ºC
20–30ºC
>30ºC
A power supply with a tunable DC output and an output current limit function, is required for the maintenance.
Procedure
1.
Tune the output voltage of the DC power to 14.4–14.7 V.
2.
Set the output current limit to 1.3 A.
3.
Connect the positive/negative poles of the DC power to the correspondent sides of the battery.
+
-
Illustration 77: UPS Battery Terminals
4.
Switch on the DC power to charge the battery.
5.
Charge each battery for at least 16–24 hours.
6.
After charging, cut off the DC power and disconnect the wires between UPS battery and DC power.
9.8 Power Cells
9.8.1 Power Cell Maintenance
Procedure
1.
Take the power cell out of the drive cabinet, or if in storage, out of its insulated plastic bag.
2.
Place the power cell on an insulated location.
The withstand voltage level must exceed the input power.
3.
Connect a 3-phase power to the power cell input terminals though a 3-phase current-limiting resistor.
Different power cells have different mechanical designs.
Connect to the hung-up side of the fuses.
Power
A
R
B
S
C
T
Current-limiting resistors
Illustration 78: Power Cell Circuit Diagram
Danfoss A/S © 2021.06
Maintenance interval
Every six months
Every three months
Storage above this temperature in the long term is strictly forbidden.
Maintenance
AQ363633621020en-000201 / 172F3117 | 87
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