5-1. Equipment installation
CAUTION!
DISCONNECT POWER BEFORE INSTALLING OR SERVICING
ONLY SPECIALIZED PERSONNEL SHOULD INSTALL THE EQUIPMENT AND ONLY AFTER
HAVING READ THIS USER'S GUIDE.
THE USER ITSELF IS RESPONSIBLE FOR ANY PHYSICAL INJURY OR MATERIAL DAMAGE
RESULTING FROM MISHANDLING THE EQUIPMENT.
IF YOU HAVE ANY DOUBTS ABOUT ANY PROCEDURE, PLEASE CONTACT YOUR
DEALER.
Remarks
Supply wire conductors should have the same section as direct starters. As
an indication,
Vd
voltage drop in wires should not be more than 2%.
Signal wiring should be no longer than 3mts (up to 25mts.when using screened
cable), and should be separate from power wires (line, motor, command relays,
etc.) by at least 10cm, and if they cross, they should do so at a 90º angle
R = conductor resistance (m
Ω
/ m)
L = conductor length (m)
In = motor rated current (A)
Vd =
x R x L x In
3
1000
Conductor section (mm
2
)
2,5
4
6
10
16
25
35
50
100
150
Resistance R (Cu) 20ºC (m
Ω
/ m)
7,5
4,55
3,05
1,85
1,13
0,725
0,528
0,254
0,183
0,122
Resistance R (Al) 20ºC (m
Ω
/ m)
1,86
1,188
0,868
0,416
0,3
0,2
Relays and contactors located in the same housing as the equipment should
have an RC suppressor parallel to the coil (or a reverse diode, if controled by DC).
Do not install capacitors to correct the power factor between equipment
output and motor
If the equipment is fed by a line transformer, its rated power should be at least 1.5
times, but less than 10 times, higher than equipment supply.
A C
D C
SIGNAL
POWER
5. Installation
Environment
When installing equipment, keep the following points in mind :
- The equipment should be installed vertically and hang over a platform or
bars. The vertical position is essential for proper cool air circulation
- Environmental conditions are in accordance with the following ranges and
maximum values :
- Operating temperature : 0ºC to +55ºC
- Relative humidity (without condensation) : 95%
- Maximum altitude : 3000m
Reduce rating by 1.5% / ºC from 40ºC and 1% / 100m from 1000m
- Do not install equipment in environments containing explosive or flamma-
ble gases, or near important heat sources
- Equipment should be well ventilated, with minimum keeping clearances
as indicated in the illustration.
- When equipment is to be mounted on a platform subject to strong
vibrations, there should be an elastic base to protect the equipment.
150mm
100mm
50mm
50mm
ASTAT
5-1
INCORRECT
CORRECT
10 cm
8 cm
