Hyd-Mech V-18, Operation & Maintenance Manual

Page: 12 / 117

Pg 1.5
V18 2001f
WIRING CONNECTIONS
After the machine is levelled and anchored the necessary power hook-up needs to be performed. In order to
provide safe operation as well as to prevent potential damage to the machine, only qualified personnel should
make the connections.
BEFORE START-UP THE FOLLOWING TWO POINTS SHOULD BE CHECKED
1. Signs of damage that may have occurred during
shipping to the electrical cables and the hydraulic hoses.
2. The hydraulic oil level is between the upper and lower
levels on the gauge.
As supplied, the machine is set to run on three phase voltage
as indicated on the serial plate and voltage label.
During the initial hook-up, it is very important to check that the
phase order is correct. This is indicated by the hydraulic system
pressure gauge registering a pressure rise and the blade running in
a counter clockwise direction. If the hydraulics do not register an
immediate pressure rise, SHUT THE HYDRAULICS OFF and
change the phase order.
ATTENTION: Running the hydraulics "backwards" can damage the hydraulic pump!
Power connection to the machine is made to the L1, L2, L3 and ground terminals located inside the control
panel and next to the fuse holders as shown in the photo.
BLADE TENSION CHECK
When the machine is first started, the blade position must be checked. Open the door at the top
of the head and see that the blade has not moved off of the wheel. It should not be overhanging
from the wheel more that 1/4”, if it is, then consult page 3.2. If it has stayed in it’s correct position,
then check that the blade tension switch is in the “+” position and close the door.
EARTH GROUNDING PROCEDURE
1. Customer to provide and install a ground rod approx. .60 (15mm) diameter, copper clad
steel, to be driven no less than 8’ (2.5m) into the ground, no more than 10’ (3m) away from control enclosure.
2.
Ground rod to be connected to customer’s in plant ground system. This connection shall be made directly at
the ground rod. (If applicable).
3.
It is desirable that the overall resistance to ground measured at the ground rod does not exceed 3 ohms.
Customer is advised to consult local power company for further information on grounding.
4.
Ground rod to be connected to ground terminal in control enclosure using insulated, stranded copper wire.
The correct wire size is shown below. Machine FLA 5A 10A 20A 30A 40A
Wire Size AWG 20 18 16 14 12
5. An additional point to check is ensuring continuity of ground within control enclosure. Start with main power
entrance ground terminal where internal ground conductors should originate and connect to, DIN terminal strip,
control transformer and the lid of control enclosure. Also PLC and Interface units should have their own ground
conductors connected to one of the main ground terminals.
6.
Properly functioning ground system will;
-
provide safety for personnel.
- ensure correct operation of electrical/electronic devices.
- prevent damage to electrical/electronic apparatus.
- help dissipate lightning strokes.
- divert stray radio frequency (RF) energy from electronic/control equipment.
Power connection terminal
L1, L2, L3, G
(Cover in place)
Blade tension
switch