Lenze ESV SMV frequency inverter - Manual (Page 18)

16 Lenze SMVector 13465100 EDBSV01 EN v18
Installation
3.2 Electrical Installation
Installation After a Long Period of Storage
STOP!
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.
3.2.1 Power Connections
STOP!
If the kVA rating of the AC supply transformer is greater than 10 times the input kVA
rating of the drive(s), an isolation transformer or 2-3% input line reactor must be added
to the line side of the drive(s).
DANGER! Hazard of electrical shock!
Circuit potentials up to 600 VAC are possible. Capacitors retain charge after power is
removed. Disconnect power and wait at least three minutes before servicing the drive.
STOP!
• Verify mains voltage before connecting to drive.
• Do not connect mains power to the output terminals (U,V,W)! Severe damage to the drive will result.
• Do not cycle mains power more than once every two minutes. Damage to the drive may result.
Mains and Motor Terminations
Type Torque Strip Length
<5HP 12 lb-in (1.3 Nm) 5/16 in (8mm)
ESV552xx2T, ESV752xx2T, ESV113xx4/6, ESV153xx4/6, ESV183xx6, ESV223xx6 16 lb-in (1.8 Nm) 5/16 in (8mm)
ESV552xx4Txx, ESV752xx4Txx, ESV552xx6Txx, ESV752xx6Txx 12 lb-in (1.3Nm) 0.25 in (6mm)
ESV113xx2xxx, ESV153xx2xxx, ESV183xx4xxx, ESV223xx4xxx, ESV303xx4xxx 24 lb-in (2.7 Nm) 7/16 in (10mm)
ESV373xx4xxx, ESV453xx4xxx 27 lb-in (3.05 Nm) 0.75 in (19mm)
Torque: N4X/IP65 Door Screws
N4X/IP65 6-7 lb-in (0.67-0.79 Nm) 0.25 in (6mm)
3.2.1.1 Mains Connection to 120VAC Single-Phase Supply
ESV...N01S...
PE L1 L2 N
PE L1 N