Lenze TCF Series - Manual (Page 30)

12 INITIAL POWER UP AND MOTOR ROTATION
DANGER!
Hazard of electrical shock!
Capacitors retain charge after power is removed . Disconnect incoming
power and wait until the voltage between terminals B+ and B- is 0 VDC
before servicing the drive .
STOP!
•
Do NOT connect incoming AC power to output terminals T1, T2, and
T3! Severe damage to the drive will result .
• Do NOT continuously cycle input power to the drive more than once
every two minutes . Damage to the drive will result .
• 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 motor .
Before attempting to operate the drive, motor, and driven equipment, be sure all procedures
pertaining to installation and wiring have been properly followed .
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 .
Energize the incoming power line . The LED display will sequence through displays that show
the drive's parameter version (500 in the example below), HP rating, and voltage rating . It
should then read “- - -”, which indicates that the drive is in a STOP condition . The following
diagram illustrates the initial LED display sequence .
Display flashes
HP rating
Apply input power
Display flashes
parameter version
(500-599) Display shows "- - -"
to indicate STOP Display flashes
voltage rating
26