Enarco BOXEL, Instruction Manual

Page: 23 / 64

ELECTRONIC FRECUENCY CONVERTERS
9 BOXEL 215 / 225 / 325
PROCEDURE TO DETERMINE THE NECESSARY TRANSVERSAL SECTION IN CABLE
EXTENSION
Do the following verifications and take the highest section of cable:
1. The ohmic resistance and inductive resistance of the cable with the permitted loss of voltage of
5%, cosphi=0.8 trough the frequency and voltage curve
I.e: Voltage nominal:........................... 1- 220 V 50 Hz
Nominal current:............................ 10 A
Cable length:................................. 100 m
Entering the curve with the product: Intensity x Length=10x100=1000 Am We obtain a 4 mm
2
section
2. The permitted heating of the cable according to VDE standard (minimum transversal section table
required).
I.e: For 10 A, according to table for 15 A or less, the section is of 1 mm
2
.
Therefore, the section chosen is equal to 4 mm
2
, always choose the highest transversal section of
the two verifications
4.4 PERIODIC MAINTENANCE
1.- If necessary open the converter, you must wait at least 2 minutes after removing the plug from
the outlet besides the light signal on the LED indicator must be off, since that period of time is
necessary to allow the discharge capacitors incorporated into team. Never perform work inside the
converter while this is connected to the network or led is on
2.- Only an expert shall work on the electrical parts.
3.- Make sure that the current is off during repairs.
4.- In all maintenance operations, original parts will be used.
5.- The electrical earth wire (green-yellow) should be longer to avoid being the first one in cutting in
case of breaking of wires. After maintenance, control the current through the earth cable .
6.- Clean the ventilation vents in the front and back part of the converter periodically to avoid
overheating.
7.- After maintenance job and service, all safety devices should be assembled correctly.
8.- After working 40 hours inspect the frame holding bolts.
9.- Every 12 months or more frequently, depending on the usage conditions, it is recommended an
inspection be done by an authorized dealer.
10.- During the maintenance, secure that the device is disconnected from the power source.
INTENSIDAD NOMINAL X LARGO DE LÍNEA (A m)
SECCIÓN DE LA LÍNEA EN mm
2
2,5
1,5
10
4
6
25
16
6000 3000 1000 0 2000 4000 5000
115 V 230 V
380 V
Sección (mm
2
) Carga máx. (A) Fusible máx. (A)
1 15 10
1,5 18 10/3-16/1-
2,5 26 20
4 34 25
6 44 35
10 61 50
16 82 63
25 108 80
Secciones mínimas según normas VDE
e
n