Electrical Installation; Power Connections; Mains Connection To 120Vac Single-Phase Supply - Lenze ESV251 1S Series Operating Instructions Manual

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

3.2.1.1

Mains Connection to 120VAC Single-Phase Supply

ESV...N01S...
16
Installation
For further assistance, please
visit our SMV Support Portal:
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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.
Type
<5HP
ESV552xx2T, ESV752xx2T, ESV113xx4/6, ESV153xx4/6, ESV183xx6, ESV223xx6
ESV552xx4Txx, ESV752xx4Txx, ESV552xx6Txx, ESV752xx6Txx
ESV113xx2xxx, ESV153xx2xxx, ESV183xx4xxx, ESV223xx4xxx, ESV303xx4xxx
ESV373xx4xxx, ESV453xx4xxx
N4X/IP65
PE L1 L2 N
PE L1
Mains and Motor Terminations
Torque: N4X/IP65 Door Screws
N
Lenze SMVector 13554876 EDBSV01 EN v21.0
Torque Strip Length
12 lb-in (1.3 Nm) 5/16 in (8mm)
16 lb-in (1.8 Nm) 5/16 in (8mm)
12 lb-in (1.3Nm) 0.25 in (6mm)
24 lb-in (2.7 Nm) 7/16 in (10mm)
27 lb-in (3.05 Nm) 0.75 in (19mm)
6-7 lb-in (0.67-0.79 Nm) 0.25 in (6mm)