Power Supply And Wiring - LG LP-K3063ZA Manual

I Power Supply and Wiring
The unit is completely wired internally at the fac-
tory according to general rule of electrical tech-
nology, but local rules, if they are required, should
be complied with.
1. Power supply
Power source must fulfill the following conditions:
The working voltage should be higher than
90% and lower than 110% of the rated voltage
marked on the name plate.
The starting voltage should be higher than
85% of the rated voltage marked on the name
plate.
Voltage
Power source voltage
working voltage
Starting voltage
2. Wiring
After the confirmation of the above conditions, pre-
pare the wiring as follows:
Use the power supply cord(Rubber insulation,
type Ho7RNF approved by HAR or SAA) suit-
able for the product's electriccal capacity.
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Starting point
Time
- 27 -
UNIT VOLTS
cross-sectional area
H/P 450/750V
20K/30K
/40K
C/O 450/750V
Provide a recognized circuit breaker as below
between power source and unit.
A disconnection device to adequately discon-
nect all supply lines must be fitted.
(for service operations)
UNIT Circuit breaker capacity
H/P
20K/30K/
40K
C/O
The screws which fasten the wiring in the cas-
ing of electrical fittings are liable to come loose
from vibrations to which the unit is subjected
during the course of transportation. Check them
and make sure that they are all tightly fastened.
(If they are loose, it could give rise to burn-out
of the wires.)
See to it that the starting voltage is maintained
at more than 90 percent of the rated voltage
marked on the name plate.
The following troubles would be caused by volt-
age drop-down.
Vibration of a magnetic switch, damage on the
contact point there of, fuse breaking, distur-
bance to the normal function of a overload pro-
tection device.
Outside
Conductor
diameter
4.0mm 2 13.3mm
2.5mm 2 11.8mm
30A
30A
LGE Internal Use Only