Manual
Weld Seam Detection System R4000 SND40
for Tubes, Cans and Drums
System description
B0059001 / Rev. 2.3
22
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
2.5
Important notes for software and hardware of the plant control
Note:
The use of the program interface minimizes operator errors.
The correct sequence is critical for the successful integration of weld seam detection. The following
points must be considered in the conception:
•
Each tube type has its own program. The corresponding data record, called program
parameters is stored in SND40. To select the correct program for a specific tube type use the
control interface.
•
The signal on/off for the drive motor comes directly from the SND40, so long as functions with a
higher priority such as emergency off or release allow.
•
The signal is "recognized weld seam / motor" for the control of the motor must be processed at
correct time and processed in real time by the controller. Always connect to a "Fast" input of the
PLC or motor controller.
•
0 ° is the angle when the weld is directly in front of the sensor element. For other positions the
parameter position offset can be adjusted in steps of 1°.
•
For commissioning and service of the weld seam detection system the control system needs a
separate operating mode for set up and calibration. This is to assist with optimizing of programs.
•
When setting the operator should have the possibility to load a tube into the turning mechanism,
to place the sensor onto the tube and be able to then delegate the control of the motor to the
SND40, until the setup process is terminated by the operator or a fault is present which requires
shut down.
•
The interface signals of the SND40 such as "Ready" and "Error" are to be logically evaluated
and indicated to the operator
•
The interface signals "critical detection" or "slip" activates the sorting out of the tube
•
In order to reduce the rate of sorting out, the measurement cycle can be repeated
•
The repetition is done either by selecting another program or method of sensor positioning
The minimum requirements for operation of the SND40 are:
•
Setup operation
•
Measuring operation
•
Program change
•
Error handling
•
Sorting out
For the best usage of the SND40 the following additions should be made:
•
2
nd
measurement procedure automatically
•
2
nd
measurement procedure with program change
•
2
nd
measurement procedure at alternative measuring position
