SIPLACE-SX4-DX4-用户手册.pdf - 第256页

Settings Conveyor Settings 5.5.2 Teaching the Sonar Sensor PXS240 256 Service Manual SIPLACE SX4/DX4 5.5.2 5 . 5 . 2 T e a c h in g t h e S o n a r S e n s o r P X S 2 4 0 Teaching the Sona r Sens or PXS240 Parts, equipm…

Settings

5.5.1 Belt Tension Conveyor Settings

Service Manual SIPLACE SX4/DX4 255

5.5.1.4

5.5.1.4 Calculating the Belt Tension

Calculating the Belt Tension

Example

Distance between the rollers: 235 mm

Calculation:

20000/235 = 85 (exactly 85.106…)

10 % of 85.106… = 8.5106…

Result:

Belt tension: 85 +/-9 Hz

NOTICE

For conveyor belt only

This calculation only applies to the conveyor belt.

► Define the two deflection pulleys between which you

want to set the belt tension. If possible, avoid using

the idlers for this.

► Measure the distance between the two deflection pul-

leys parallel to the conveyor belt. (see diagram)

CAUTION!

Please note that it is not always possible to just measure

the deflection pulleys from center to center.

► Calculate the belt tension using the following formula:

(20000 / roller spacing [mm]) [Hz]

The permissible tolerance is always plus/minus 10 % of

the calculated value.

Settings

Conveyor Settings 5.5.2 Teaching the Sonar Sensor PXS240

256 Service Manual SIPLACE SX4/DX4

5.5.2

5.5.2 Teaching the Sonar Sensor PXS240

Teaching the Sonar Sensor PXS240

Parts, equipment and tools

▪ Setting gauge for ultrasonic sensors [03076989-xx]

▪ Programming cable for PXS240 sensor [03073330-xx]

Setting

► Use the software to move the conveyor sides into the position which allows you best access. As an

alternative, you can loosen the clamps for the relevant sides in dual conveyors.

► Secure the machine by attaching relevant warning tags. Do not switch the machine off as the setting

would then not be applied. Observe the instructions in section "1.2 Preparatory Work..." [ ➙ 12],

NOTICE

2 versions of the programming cable

In the meantime, a second version of the programming cable (UB-PROG2) has been supplied.

The function of this programming cable is similar to that of programming cable PXS240. Fur-

thermore, two adapter cables (M8/M12 adapter and M12/M8 adapter) can be connected for the

sensor and the conveyor control cable.

The previous programming cable will now be available under the name "UB-PROG4-V31" (old

name was PXS240) and the item no.: [03073330-xx].

► See also"4.10 Programming Cable for PXS240 Sensor [03073330-xx]" [ ➙ 223]

► To use the new programming cable, proceed as follows:

Switch on the machine and place the gauge onto the conveyor, as described. To teach,

press the "A1" button on the programming cable for approx. 3 seconds, until the LED on the

sensor begins to flash. The "A2" button on the UB-PROG2 is not needed.

Connecting the programming cable (example of X4I

shown)

1. Programming cable for PXS240 ultrasonic sensor

2. Press-fit connection for the ultrasonic sensor

3. Ultrasonic sensor PXS240

► Unplug the press-fit connection from the ultrasonic

sensor and connect the programming cable between

this and the ultrasonic sensor.

Settings

5.5.2 Teaching the Sonar Sensor PXS240 Conveyor Settings

Service Manual SIPLACE SX4/DX4 257

► To teach, press the button on the programming cable for approx. 3 seconds, until the LED on the

sensorbegins to flash.

The switching threshold is set accordingly.

► Remove the setting gauge.

► Loosen the programming cable connections and reconnect the ultrasonic sensor directly to the con-

nection at the machine end.