Lenze MC1000 Series - Manual (Page 27)

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12 INITIAL POWER UP
WARNING!
Hazard of electrical shock! Wait three minutes after disconnecting incoming
power before servicing 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, and T3! Do
not cycle input power to the drive more than once every two minutes. 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 set point 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 contact the factory for assistance.
NOTE
If the drive's display is blank after power up, and it is a model equipped with heatsink
fans, check to make sure the fans are operating (they should be spinning anytime
power is applied to the drive). If they are not spinning, the drive's display will be blank
and the drive cannot be operated. If the fans are clogged or jammed, disconnect
power from the drive and remove any obstructions from the fans. Re-apply power
to the drive and check the fans. If they are spinning, the drive's display should
appear and the drive should operate properly. If there are no obstructions, the fan
itself may be defective. Please contact the factory for assistance.