Lenze MC3000 Series - Manual (Page 26)

22 13435743_EDBM301_v14 .0
12 INITIAL POWER UP
WARNING!
Hazard of electrical shock! Disconnect incoming power and wait
three minutes before servicing the drive . Capacitors retain charge
after power is removed .
Before attempting to operate the drive, motor, and driven equipment be sure all procedures
pertaining to installation and wiring have been properly followed .
WARNING!
Severe damage to the drive can result if it is operated after a long
period of storage or inactivity without reforming the DC bus capacitors!
If input power has not been applied to the drive for a period of time exceeding three
years (due to storage, etc), the electrolytic DC bus capacitors within the drive can change
internally, resulting in excessive leakage current . This can result in premature failure of
the capacitors if the drive is operated after such a long period of inactivity or storage .
In order to reform the capacitors and prepare the drive for operation after a long period
of inactivity, apply input power to the drive for 8 hours prior to actually operating the
drive/motor system .
Disconnect the driven load from the motor . Verify that the drive input terminals (L1, L2,
and L3) are wired to the proper input voltage per the nameplate rating of the drive .
WARNING!
Do NOT connect incoming AC power to output terminals T1, T2 or
T3 . Severe damage to the drive will result .
Energize the incoming power line . The LCD display should light and flash “TESTING”
and then show the voltage and horsepower rating of the drive . The display should then
show “STOP 20 .00 HZ” which indicates that the drive is in a STOP condition, and the
speed setpoint is 20 .00 Hz:
STOP > 20.00 HZ
If the display does not appear, remove the incoming power, wait three minutes for the bus
capacitors to discharge, and verify correct installation and wiring . If the wiring is correct,
re-apply incoming power and note the display for drive status . If the display still does not
appear call the factory for assistance .