00196497-07_SM_SXDX12_en - 第277页

Settings 4.6.1 Belt Tension Conveyor Settings Service Manual SIPLACE SX1/SX2/DX1/DX2 FS02 277 4.6.1.4 4 . 6 . 1 . 4 C a lc u la t in g t h e B e lt T e n s io n Calculating the Belt Tension Example Distance between the r…

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Settings
Conveyor Settings 4.6.1 Belt Tension
276 Service Manual SIPLACE SX1/SX2/DX1/DX2 FS02
4.6.1.3
4.6.1.3 Setting the Tension of the Width Adjustment Toothed Belt
Setting the Tension of the Width Adjustment Toothed Belt
Overview
Setting
Use the software to move the conveyor sides into the position which allows you best access. Alter-
natively, you can also loosen the conveyor side clamps on the dual conveyor (see "3.6.1 Loosening
the Conveyor Side Clamps" [ ➙ 143]).
Switch off the machine, disconnect it from the power supply and secure it to prevent unauthorized
reactivation. Observe the instructions in section "1.2 Preparatory Work..." [ ➙ 13].
Check the tension at the center (1) between the two deflection pulleys. The tension needs to be 20 +/
-2Hz.
If the tension is not correct, loosen the screws fastening the drive unit and alter the tension. To in-
crease the tension, press the drive unit towards the output side and vice versa.
1. Drive unit of width adjustment
2. Electrical connections
3. Fastening screws
Settings
4.6.1 Belt Tension Conveyor Settings
Service Manual SIPLACE SX1/SX2/DX1/DX2 FS02 277
4.6.1.4
4.6.1.4 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 4.6.2 Teaching the Sonar Sensor
278 Service Manual SIPLACE SX1/SX2/DX1/DX2 FS02
4.6.2
4.6.2 Teaching the Sonar Sensor
Teaching the Sonar Sensor
Parts, tools and equipment
Setting gauge for ultrasonic sensors [03076989-xx]
Programming cable for PXS240 sensor [03073330-xx]
This programming cable can be used for the following sonar sensors:
Sonar sensor PXS240 [03069863-xx]
Sonar sensor UB100-F77 [03089004Sxx]
Setting
Use the software to move the conveyor sides into the position which allows you best access. Alter-
natively, you can also loosen the conveyor side clamps on the dual conveyor (see "3.6.1 Loosening
the Conveyor Side Clamps" [ ➙ 143]).
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..." [ ➙ 13].
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 alsoProgramming Cable for PXS240 Sensor [03073330-xx]
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. three 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
2. Press-fit connection for the ultrasonic sensor
3. Sonar sensor
Unplug the press-fit connection from the ultrasonic
sensor and connect the programming cable between
this and the ultrasonic sensor.