SL940-Install-Ops-Maintenance-7210918_B.pdf - 第21页
Introduction 1-7 1.10 Vision System The Vision S y stem cons is ts of a Da lsa - Coreco Genie M640 digital 640 x 480 p ixel cam era . I t allow s the programm er to teach dispensing loc ations on the subs trate us ing th…
1-6 Introduction
1.9.7 Laser Fan Width Control System
Laser Fan Width Control provides closed-loop monitoring of the conformal coating process. The system
automatically verifies and adjusts the fan width prior to and/or after the coating operation. Fan width
programming is done through the ECXP software.
1.9.8 Laser Pointer Programming Tool
The Laser Pointer Programming Tool projects a red dot onto the workpiece, which simulates the center
point of the dispensing module for faster identification of coating begin and end points. ECXP software
automatically compensates for the offset of the laser pointer-to-dispense-module centerline. The Laser
Pointer Programming Tool is factory configured at the time of system manufacture and reduces
programming time for faster production ramps.
1.9.9 Low Fluid Sensor (for external reservoir)
The Low Fluid Sensor triggers a Light Beacon display and software warning message when the level of
coating material is low. The sensor can be set to a level that provides ample time to refill the reservoir
before reaching an out-of-material condition. The Low Fluid Sensor is located within the external
reservoir and is used for fluids that allow direct sensor immersion.
1.9.10 Low Fluid Scale
The Low Fluid Scale detects a low fluid condition by weighing the fluid reservoir. If the weight drops
below a preset value, a sensor triggers the Light Beacon display and the software issues a warning
message. The sensor can be set to a level that provides ample time to refill the reservoir before reaching
an out-of-material condition. The Low Fluid Scale is used for fluids where direct contact with the sensor
is not feasible.
1.9.11 Low Solvent Cup Sensor
The Low Solvent Cup Sensor triggers a light beacon display and software warning message when the
level of solvent in the cup is low. The software timer can be set to a level that provides ample time to
refill the cup before reaching an out-of-solvent condition.
1.9.12 Material Change Over System
This option allows you to manually switch air and fluid lines between two reservoirs and the fluid system
without physically disconnecting fittings and hoses. The Material Change Over System consists of tubing,
manually operated valves, controls, an extra reservoir, and all the fittings required for self-contained
material change over. The system allows you to switch from the use of coating material to solvent for
flushing the fluid lines and coating applicator during extended shutdown.
1.9.13 Pre-Queue Board Station
Workpieces are held in the Pre-Queue Board Station before entering the Dispensing area. The Pre-Queue
Board Station allows simultaneous moving of workpieces in and out of the work area.
1.9.14 Upstream and Downstream SMEMA Sensors
Mounted on a bracket attached to the conveyor rail, upstream and downstream SMEMA sensors allow
you to manually load and unload workpieces onto the conveyor in the absence of upstream or downstream
equipment.
1.9.15 UV Light
The UV Light is used to view fluids that contain UV tracers.
Introduction 1-7
1.10 Vision System
The Vision System consists of a Dalsa-Coreco Genie M640 digital 640 x 480 pixel camera. It allows the
programmer to teach dispensing locations on the substrate using the ECXP software. The programmer
views a live image of the camera’s target and uses the graphical user interface to create the coating
sequence.
1.10.1.1 Vision System with Fiducial Find
In addition to the features described in 1.10 Vision System, the system has the capability to locate
fiducials during programming and production runs.
1-8 Introduction
1.11 Conformal Coating Applicators
The SL-940E/SL-941E can be configured with any of the coating applicators described in Table 1-1.
Table 1-1 SL-940E/SL-941E Conformal Coating Applicators
Coating Applicator Rotation Tilt
SC-104HS High Speed Film Coater
0-90°
SC-105HS High Speed Film Coater
0-360° 0-30°
SC-204HS High Speed Non-Circulating Film Coater
0-90°
SC-205HS High Speed Non-Circulating Film Coater
0-360° 0-30°
SC-300 Swirl Coat Applicator None 4 position tilt
SC-400 Precise Coat Conformal Coating Jet None
The SC-10X Series Film Coaters are circulating applicators. The SC-20X Series applicators are
noncirculating. Noncirculating fluid applicators are used to apply materials that do not require heating and
therefore, are not circulated.
1.11.1 SC-104HS/SC-105HS Circulating Film Coater
The SC-104HS (4-axis) and SC-105HS (5-axis) apply coatings in a film rather than in an atomized spray
produced by conventional airless spray guns. The SC-104HS consists of an air actuated assembly which
rotates the nozzle from 0-90 degrees. The SC-105HS consists of an air actuated assembly which rotates
the nozzle in 90-degree increments. In addition, the SC-105HS has an air-activated tilt assembly, which
allows the nozzle to be tilted from vertical to 30 degrees from vertical.
1.11.2 SC-104/105VCS Viscosity Control System
The Viscosity Control System maintains consistent temperature of conformal coating fluids. The system
includes a coating applicator and a heated circulating fluid circuit to eliminate viscosity changes in
temperature-responsive materials. Close-range temperature monitoring keeps the coating process
consistent and stable. By controlling the temperature of the conformal coating fluid circuit, viscosity
fluctuations can be reduced. Additionally, emissions of Volatile Organic Compounds (VOCs) may be
reduced, depending on the fluid properties, by reducing the amount of solvent required to thin the
conformal coating.
1.11.3 SC-204HS/SC-205HS Non-Circulating Film Coater
The SC-204HS (4-axis) and SC-205HS (5-axis) film coaters are used to apply materials that do not
require heating and therefore do not require circulation. The coaters are fitted with a rotating ring
mechanism that rotates the SC-204HS nozzle from 0-90 degrees and the SC-205HS nozzle in 90-degree
increments. In addition, the SC-205HS has an air-activated tilt assembly, which allows the nozzle to be
titled from vertical to 30 degrees from vertical.