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S2-9 XXX Se ri es Dispensing Sys te m IOM Man ual Calibration and Adjustme nt © 2023 Nordson C orporatio n 5-11 Item D es cription 1 Pa yload Settings 2 Adjustm ent Screw Fi gure 5- 12 Z- Head Counterb alance Force Adjus…
S2-9XXX Series Dispensing System IOM Manual Calibration and Adjustment
5-10 © 2023 Nordson Corporation
5.7 Adjusting the Z-Head Counterbalance Force
The counterbalance balances the load on the Z-axis. It can be set to accommodate various payloads. When
the Z-head is properly balanced, it enables the system to quickly position the Z-axis accurately. This
procedure assumes the valve(s), cabling, and fluid lines are installed.
To adjust the Z-head counterbalance:
1. Power down the system, see 4.8.1 Post-Production Shutdown.
2. Open the dispensing area door.
3. Disconnect the camera and light source cables.
4. Remove the four (4) screws securing the camera and bracket to the Z-head and carefully
remove the camera and bracket (Figure 5-11) and place to the side.
NOTE If the dispensing head is configured with a tactile height sensor assembly, it is
not necessary to remove it to adjust the Z-head counterbalance force.
.
Item
Description
1
Camera Bracket
2
Bracket Mounting Screws
Figure 5-11 Removing the Camera and Height Sensor
5. Loosen the Z-head counterbalance force adjustment screw (Figure 5-12).
6. Slide the screw assembly to the desired position (Table 5-1).
7. Tighten the Z-head counterbalance force adjustment screw.
1
2
4x
S2-9XXX Series Dispensing System IOM Manual Calibration and Adjustment
© 2023 Nordson Corporation 5-11
Item Description
1 Payload Settings
2 Adjustment Screw
Figure 5-12 Z-Head Counterbalance Force Adjustment
8. Reinstall the camera and bracket.
9. Reconnect the camera and light source cables.
10. Close the dispensing area door.
11. Recalibrate the camera, see 5.6 Calibrating the Scale.
12. Perform a machine offsets procedure.
Refer to the Fluidmove User Guide or Fluidmove
Online Help to perform the offset procedures.
To test counterbalance tension:
1. Place valve on Z-head and move the valve to middle of dispense area.
2. Open the dispensing area door.
The Z-head should not rise or drop more the 6.3 mm (1/4 inch).
3. Readjust tension if necessary.
Table 5-1 Counterbalance Spring Settings
Z-payload (kg)
Typical Applications
0 - 1.7
Standard (i.e. single valve)
Standard with laser height sensor
1.7 - 2.2
Dual action
Dual action with laser height sensor
2.2 - 3
Any custom tooling exceeding 2.2-kg
NOTE The settings in Table 5-1 are for reference purposes only. Certain applications may
require different settings.
2
1
S2-9XXX Series Dispensing System IOM Manual Calibration and Adjustment
5-12 © 2023 Nordson Corporation
5.8 Adjusting the Board Sensors
Board sensors are optical sensors located along the length of the front conveyor rail. The sensors detect
the presence of the workpiece and report it to the conveyor controller. Board sensor sensitivity should be
adjusted after initial installation and if the sensors fail to sense the presence of a workpiece. Depending on
whether the system has a single-lane or dual-lane conveyers, there may be as many as six downward-
facing board sensors (pre-dispense, dispense, and post-dispense station for each conveyor). Sensitivity
adjustments for downward-facing board sensors are made on fiber optic amplifiers mounted under the
dispensing area front cover.
5.8.1 Standard Operation and Tuning
To install the board sensor (Figure 5-13):
1. Unlock the fiber lock (UP position). Insert ferrule ends until the fiber cords are fully seated.
Lock the fiber lock down into position on the conveyor rail.
NOTE Fiber ends are not designated as send or receive. Each ferrule can be used in
either amplifier position.
2. Verify that the digital value of the amplifier is less than 100 with the fiber array pointed
away from any objects (within 6 inches). This ensures array “cross-talk” will not
significantly degrade the signal.
Figure 5-13 E3X-HD Board Sensor
To adjust for workpiece presence/absence (Figure 5-14):
NOTE The E3X-HD 11 sensor requires only one button; place the part/board over the sensor and
push
STune and then move the part/board away from the sensor and push STune again.
1. With the dispensing system on and the fiber installed into the amplifier, place the
carrier/board on the conveyor so that it is breaking the fiber optic sensor beam.
2. Press the
STune button once.
3. Move the carrier/board so that it is clear of the fiber optic sensor beam.
4. Press the
STune button again.
5. Ensure the threshold level (number in red after inverting display, green if normal display) is
between the board present/not present range.
6. If the threshold number is in range, standard tuning is complete.