Manual
Weld Seam Detection System R4000 SND40
for Tubes, Cans and Drums
Technical data
B0059001 / Rev. 2.3
90
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
Pos: 70 /Schweissnaht/ Geräte/ SND40/2 Te chnische Daten/ SND40 Blockdiagram m @ 0\mod_1133261874859_501.docx @ 1079 @ 3 @ 1
9.1.2 Block diagram SND40 with combination sensor
A system consists of a control unit SND40, a sensor and a sensor cable. The block diagram
exemplarily shows a system with leakage flux module (4) and eddy current module (6). To it a
combination sensor (7) for round materials is attached.
Description of block diagram:
1:
KM:
The communication module is
the interface to the operator and
stores the system and program files.
2:
Power:
The power supply module
supplies all internal modules and the
sensors with electrical energy.
3:
PM:
The processor module takes over
the detection and positioning of the
welding seam and controls the PLC
interface.
4:
MF:
The leakage flux module is the
"front end" electronics to the Hall
sensor and supplies the magnetizing
current for the leakage flux and
combination sensors. In addition a
sensor (check signal) with current exit
(0… +/-20mA) can be attached. This
module is only present with SND40
devices with the
numbers… MF… in the designation.
5:
without representation:
Motherboard,
on which the modules are attached.
6:
EC:
The eddy current module is the
"front end" electronics to the eddy
current sensor. This module is only
present with SND40 devices with the
numbers… EC… in the designation.
7:
NS9/12-EC…:
combination sensor
consisting of magnetizing coil, (9) Hall
sensor and (10) EC sensor.
8: Round specimen, e.g. tube.
9: Hall sensor for measuring the
magnetic leakage flux. Unit is
integrated in the sensor element of the
combination and leakage flux sensors.
10: EC sensor (eddy current probe) for
generating and measuring the
alternating field. Integrated in the
sensor element of the combination
and EC sensors.
11:
KNS9S:
Sensor cable for combination
and leakage flux sensors.
12:
CECM18S:
Sensor cable for
combination and EC sensors / probes.
Fig. 45: SND40-EC-MF Block diagram
Pos: 71 /Schweissnaht/ Geräte/ SND40/2 Te chnische Daten/ SND40 Technische Zeichnung @ 0\mod_1129207623625_501.docx @ 815 @ 2 @ 1
Power
KM
MF
PM
EC
Hall-Sensor
EC-Sensor
KNS9S
CECM18S
SND40-EC-MF
NS9/12-EC-xxx
2
3
1
4
6
7
8
9
10
11
12