Magnetek IMPULSE VG+ Series 3, Instruction Manual, Page: 18 / 183

IMPULSE•VG+ Series 3 Instruction Manual - 07/25/05
2-5
Long Time Storage
When an inverter is stored for six months or more without operation, reforming of the main circuit
electrolytic capacitor is required.
NOTE: If the procedure is not feasible, the drive may be powered up every six months using rated
line voltage.
Execute the reforming as follows:
1. Connect a single or three phase variable AC supply to the inverter input terminals L1-L3.
2. Increase the voltage linearly to the rated input voltage for a period of three minutes.
3. Apply rated input voltage for 30-60 minutes or longer.
Figure 2-2: Long Time Storage
+
P
L1
L2
L3
N
V
IN
t
3 min or greater 30-60 min or greater
V
IN
: Inverter rated voltage (230V, 460V, 575V)
V
0
Applied Voltage
AC Power Supply
Inverter Unit
)