SL940-Install-Ops-Maintenance-7210918_B.pdf - 第18页
1-4 Introduct ion 1.8.8 A djusta ble Tooling Rail s (SL - 941E) The Adju stabl e Tool ing Rails secure the workpiece for batch system operations. 1.8.9 Ventilat ion Sy stem The SL -940E/SL- 941E features downdr aft venti…
Introduction 1-3
1.8 Standard Equipment
1.8.1 Computer System
The computer system consists of a laptop computer. The computer arm is adjustable in height and
right/left orientation.
1.8.2 Easy Coat for Windows XP Software
Easy Coat for Windows XP (ECXP) is Asymtek proprietary software for use in a Windows XP
environment, developed specifically for conformal coating applications. ECXP controls both the
dispensing head (robot) movements and the dispensing operation. ECXP features include:
• Off-Line Programming
• Multiple Application Tool Selection
• Software controlled fluid and air pressure
• Process history logging
1.8.3 Chain Conveyor (SL-940E)
The chain conveyor transports the workpiece into and out of the coating system. Operation of the
conveyor is automatic during production runs. The conveyor features two board pinning clamps that
locate the workpiece in terms of X/Y location and rotation. The system can be configured with an
optional pre-queue board station which allows simultaneous moving of workpieces in and out of the work
area. See Figure 1-6.
1.8.4 Light Beacon
The Light Beacon is a device that displays system status and is located at the top right corner of the
system. It has four different colored lights that can be constantly ON or flashing and has an audible alarm.
Refer to 2.14. Light Beacon for an explanation of each color indication.
1.8.5 Safety Interlock
An interlock sensor detects if the dispensing area hood is open or closed. If the dispensing area hood is
opened when a program is running, all dispensing motion stops to protect the operator from injury. A
second interlock sensor is located behind the spill pan to ensure an appropriate ventilation path when the
drawer is pulled out for maintenance.
1.8.6 Low Air Pressure Sensor
The Low Air Pressure Sensor is connected to the Main Air Inlet. If the pressure drops below a set point, it
triggers the coating system safety interlock. This feature is used to alert the operator of pressure drop
conditions that may occur in large facilities with a number of pneumatic devices.
1.8.7 Solvent Cups
The SL-940E/SL-941E has two 125 ml stainless steel cups that are installed on separate brackets mounted
to the front conveyor rail. One cup holds solvent for cleaning the dispensing needle. A second cup is used
for the purging of conformal coating fluid.
1-4 Introduction
1.8.8 Adjustable Tooling Rails (SL-941E)
The Adjustable Tooling Rails secure the workpiece for batch system operations.
1.8.9 Ventilation System
The SL-940E/SL-941E features downdraft ventilation with a redundant safety vent switch to remove
vapors from the dispensing area. A customer supplied air duct must be connected from the coating system
to the facility air exhaust system for the system to operate. Refer to 4.5 Exhaust Connection.
1.9 Optional Equipment
Asymtek offers a wide range of options for fine-tuning your dispensing applications. This section
introduces options that are currently available for the SL-940E/SL-941E.
1.9.1 Bar Code/Data Matrix Reader
The Bar Code/Data Matrix Reader uses a bar code or data matrix label mounted on the workpiece to
select the appropriate coating program or sequence. The scanner reads the label, selects the associated
program or sequence within the ECXP software, and then executes the program or sequence.
1.9.2 Board Present Sensor
The Board Present Sensor, mounted on the robot, registers the presence or absence of a workpiece prior to
dispensing. It initiates the coating sequence only when a workpiece is in place.
The Board Present Sensor is ideal for production environments where carriers are manually loaded. If a
carrier is not fully loaded, the system will detect the empty space and not dispense at that location. The
Board Present Sensor is factory configured at the time of system manufacture. It optimizes material usage
and minimizes cleanup.
1.9.3 Brush Box
The Brush Box mounts to the conveyor and is used to clean the dispensing nozzle. The Brush Box
performs best with solvent-based materials, but can also be used with non-solvent-based fluids. Solvent is
added to the box, covering the bristles mounted to the bottom. At programmed intervals, the nozzle tip
moves back and forth in the solvent against the bristles to remove accumulated material.
Figure 1-1 Brush Box
Introduction 1-5
1.9.4 Dual Simultaneous Applicator Capability
The Dual Simultaneous Mounting Bracket, mounted on the robot, doubles dispensing capability by
accommodating two identical applicators side by side for simultaneous dispensing of a single fluid. The
two applicators are controlled independently by ECXP, enabling one coating sequence to coat one or two
products at a time. The system is configured for your specific application.
Figure 1-2 Dual Simultaneous Mounting Bracket
1.9.5 Dual Toggle Applicator Capability
The Dual Toggle Mounting Bracket, mounted on the robot, typically uses an SC-300, SC-105, or SC-205
Film Coater plus a needle type dispensing valve (such as Asymtek’s SC-400, DV-03, DV-05, or DV-09)
to separately coat broad areas of the board, as well as areas requiring smaller amounts of coating material.
The system is configured for your specific application.
1.9.6 Flow Monitoring System
The Flow Monitoring System monitors the volume of material dispensed. The coating system can be
programmed to stop, pause, or continue when the dispensed volume falls outside the preset range. The
ECXP software monitors the gear-type flow meter when the coating sequence begins, records the data in
a log file, and displays it on the computer screen in bar graph format with time history.