General Operation Notes; Before Starting Operation; Test Run - Watt Drive L2000 Series Manual

7.

General operation notes

Before starting operation

Prior to the test run, the following items should be checked:
1) Make sure that the power lines (input power supply terminals L1(L1), L2, and L3(N)) and output
terminals (U(T1), V(T2) und W(T3)) are connected correctly.
2) Make sure that there are no mistakes in the signal line connections.
3) The grounding terminal must be grounded.
4) Terminals other than those marked as grounding terminals must not be grounded.
5) The inverter must be installed vertically on a non-flammable mounting surface (e.g. steel).
6) Remove any residue from wiring work like stray pieces of wire and others. Also, make sure that
no tolls are left behind.
7) Make sure that the wires connected to the output terminals are not short-circuited or grounded.
8) All the terminal screws must be sufficiently tightened.
9) The configurable maximum output frequency parameter must be chosen in accordance with
the maximum frequency of the connected motor and machine.
10) Do not operate the inverter with the front case opened. Make sure the front case is completely
closed and locked with the screw.
Do not carry out any withstand voltage tests because the inverter has a surge absorber between
the mains circuit terminals and the ground.

Test run

Below an example for an inverter connection is shown. For the initial tests, frequency adjustment
and forward and reverse running commands should be carried out via the digital operator in order
to check the inverter's correct functioning.
Earth leakage
circuit breaker
Power supply
(three phase)
50/60 Hz
400V class:
Three phase 380~460V
200V class:
Single phase 200~240V
Three phase 200~240V
Fuses
T1 (U)
L1 (L1)
T2 (V)
L2
T3 (W)
L3 (N)
1
Inverter
2 L2000 series
3
4
5
L
P24
H
O
OI
L
FM
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General operating notes
Initial setting for maximum
frequency (-FE and -FU series)
is 50 or 60Hz and initial setting
Motor
for direction of rotation is
"forward run".
+1
+
AL0
Fault alarm signal
AL1
Normal state: AL0-AL1
AL2
Trip and power off: AL0-AL2
11
CM2
12
Ground