Danfoss iC2-Micro Series - Safe Transportation and Storage

Design Guide | iC2-Micro Frequency Converters Mechanical Installation Considerations
Table 44: Drive Storage Duration and Reforming Recommendations
Storage duration Reforming guideline
Under 2 years No reforming required. Connect to mains voltage.
2–3 years Connect to mains voltage and wait a minimum of 30 minutes before loading the drive.
Over 3 years Using a DC supply connected directly to the DC-link terminals of the drive, ramp up the voltage 0–
100% of DC-bus voltage in increments of 25%, 50%, 75%, and 100% rated voltage under no load for
30 minutes at each increment. See Figure 32.
A
B
100
75
50
25
0.5 1 1.5 2
e30bh757.10
[% ]
[h]
Figure 32: Reforming Procedure for DC Capacitors
A Reforming voltage (percentage of rated voltage) B Hours
Table 45: DC Bus Voltage Ramp-up Value
AC input voltage Voltage across the DC link
1x100–120 V AC 320VDC
1x200–240VAC 320VDC
3x200–240 V AC 320VDC
3x380–480VAC 650VDC
6.4.2 Safe Transportation and Storage
Follow all information on transportation, storage, and proper handling given in the product-specific documentation. That includes:
l If the drive is stored before installing it, make sure that the ambient conditions agree to the specifications given in 4.2.7.2 Ambient
Conditions during Storage.
l If the package is kept in storage for more than 4 months, keep it in controlled conditions:
¢ Make sure that the temperature variation is small.
¢ Make sure that the humidity is less than 50%.
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