Radio Transmission; Description; Distances When Using More Than One System - marposs E86N Manuel D'installation Et D'utilisation

ENGLISH

6. RADIO TRANSMISSION

6.1 Description

The radio transmission system consists of three elements:
Transmitter: issues the information required by the CNC to process
the measurement.
Antenna: receives the signal from the transmitter and sends it to the
E86N interface unit.
Interface unit: processes the signals and converts them into a form
which the CNC can use.
The E86N system allows you to programme 64 different transmission
channels using the keyboard
"PROGRAMMING THE SYSTEM" on page 71)
Two antennas can be connected to the E86N interface unit, to increase
the range of transmission and reliability of the radio communication.
The system lets you use up to a maximum of 4 transmitters on the same
machine tool (Figure 6-1), operating on the same channel and activated
alternately, one at a time, by a different identification code (see sec. 10.2
"Programming the Transmitter" on page 75).
Table 6-1. Technical specifications.
- Transmission distance
- Transmission power
- Activation/deactivation and
programming distance
Table 6-2. Transmission frequencies.
CHANNEL FREQUENCY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
6.1.1

Distances when using more than one system

To avoid interference between systems positioned close to one another,
the following distances must be observed:
At least 2 metres between the Antennas of the systems,
irrespective of whether or not adjacent channels are used (e.g.:
CH5 and CH6).
At least 0.2 metres between the transmitters of the systems,
irrespective of whether or not adjacent channels are used.
At least 0.5 metres between the transmitter of one system and the
Antenna of the other system operating on adjacent channels.
NOTE: when using 2 systems on the same machine (e.g.: twin
spindle machining centres), as well as observing the
distances indicated in Figure 6-2, you must also use two
NON-adjacent channels and identification codes "A" and
"D".
Systems operating on the same channel must be at least 100
metres apart.
58
on the interface
: 15 m
: <1mW
: 5 m
CHANNEL FREQUENCY
433,075 17 433,475
433,100 18 433,500
433,125 19 433,525
433,150 20 433,550
433,175 21 433,575
433,200 22 433,600
433,225 23 433,625
433,250 24 433,650
433,275 25 433,675
433,300 26 433,700
433,325 26 433,725
433,350 28 433,750
433,375 29 433,775
433,400 30 433,800
433,425 31 433,825
433,450 32 433,850
A
(see sec. 10
- Activation power
- No. of transmission channels
- Transmission frequency
CHANNEL FREQUENCY
33 434,000
34 434,025
35 434,050
36 434,075
37 434,100
38 434,125
39 434,150
40 434,175
41 434,200
42 434,225
43 434,250
44 434,275
45 434,300
46 434,325
47 434,350
48 434,375
Figure 6-2. Distances when using more than one system.
B C D
Figure 6-1. Radio transmission system.
: <10 mW
: 64
:433,075 - 434,775
MHz
CHANNEL FREQUENCY
49 434,400
50 434,425
51 434,450
52 434,475
53 434,500
54 434,525
55 434,550
56 434,575
57 434,600
58 434,625
59 434,650
60 434,675
61 434,700
62 434,725
63 434,750
64 434,775
E86N- Touch system with radio transmission