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Introduction • Subassemblies PS288 Owner’s Manual 1—5 lope. A computerized vi sion system allows the PNP head to make adjustments for very accurate device placement. The PNP head uses different sized probe tips to accomm…

Introduction • Subassemblies

1—4 PS288 Owner’s Manual

Figure 1-2—PS288 primary subassemblies

Light tower—

Allows monitoring the status of the PS288 from a distance while the

system is processing devices. See “Monitor the Light Tower” on page

3-13 for a complete description of light colors and significance.

Gantry—

Travels along X- and Y-axes moving the PNP head to different loca-

tions within the work envelope.

Pick and place head (PNP head)—

The motion system responsible for moving devices to and from their

respective stages within the handler. The PNP head moves devices in

four axes, X, Y, Z and R (also called theta), within the operating enve-

Light Tower

Safety Shields

Touch Screen Monitor

Keyboard and touchpad

Grounding Socket

Vision System

(hidden)

Static Tray Mount

Emergency Stop Button

PNP Head

Handler Computer

I/O Controller

Gantry

FlashCORE Quad

Introduction • Subassemblies

PS288 Owner’s Manual 1—5

lope. A computerized vision system allows the PNP head to make

adjustments for very accurate device placement.

The PNP head uses different sized probe tips to accommodate the great

number of device types that are available. During operation, a vacuum

is switched on as the probe tip is lowered toward the device. A vacuum

sensor is used to detect when the probe tip touches the device. The PNP

head then picks up the device and moves it to the camera where it com-

pares the device position on the probe tip to a digital image of a known

good position. It can then correct for probe misalignments on the X, Y,

and R axes (up to 30°) before the device is placed in the programming

socket.

Once corrections are made, the PNP head moves the device to the drop

location, the probe tip is lowered, and the vacuum is turned off. The

drop position of the probe tip is slightly higher than the pickup posi-

tion, as a blow-off, a small amount of positive-pressure air, is applied to

break the vacuum seal. The short drop from the probe tip to the pro-

gramming socket or output media prevents fine pitched leads from

being damaged by excessive pressure.

WARNING: The gantry system and associated components move

with great speed and force, and have the potential to cause great

bodily harm. Do not bypass the safety interlocks or operate the

PS288 with the safety shields open or removed.

Emergency stop (E-Stop) buttons—

Two E-Stop buttons (on either side of the PS288 near the top) are used

to stop motion of the gantry and PNP head in case of an emergency.

When an E-Stop button is pressed, the gantry and PNP head stop mov-

ing immediately.

WARNING: Pressing an E-Stop button stops motion of the gan-

try and PNP head only. It does not remove power from the PS288

or the Option Bay (if installed).

Quad Programmer Assembly —

A Quad assembly containing four FlashCORE programmers that

accept Socket Adapters with 1 to 4 sockets each, for a total of up to 16

programming sockets.

Vision system—

The camera and associated components of the vision system are used to

verify proper alignment of devices removed from the input media

before inserting them into the programming sockets. Misalignments are

corrected before placing the device in the programming socket or

marking pedestal.

Introduction • Subassemblies

1—6 PS288 Owner’s Manual

Static tray mount—

Using positioning pins and “L” bracket magnets, holds several differ-

ent tray sizes including JEDEC and non-JEDEC standard trays in posi-

tion for the PNP to pick up devices and return them after processing.

I/O Controller—

Provides 115 VAC for the Handler Computer and associated compo-

nents, as well as the PNP head. Also provides 24VDC for the various

sensor systems throughout the PS288. The I/O Controller provides a

transfer point for all sensor signals within the PS288 and optional

assemblies, and sends the signals to the Handler Computer for process-

ing.

Handler Computer—

The Handler Computer operates using the Microsoft

Windows XP

operating system. It hosts TaskLink and AH500 operating software for

the PS288, monitors all sensors, and hosts the vision system.

CAUTION: The PS288 should never have software added unless

instructed to do so by Data I/O Customer Support. Adding software

to the PS288 can cause damage and/or cause the system to operate

improperly. Adding software without specific instruction from

Data I/O Customer Support will void the warranty and may incur

service charges.

Keyboard and touchpad—

Used to set up system operation. Can be used instead of the touch

screen monitor if desired.

Grounding socket—

Used to prevent damage to devices from electrostatic discharge (ESD).

Operators should wear an antistatic wrist strap inserted in the ground-

ing socket.

Touch screen monitor—

Central display mechanism for the PS288, shows system status and

information about programming jobs and vision system. The touch

screen may be used instead of the keyboard and touchpad if desired.

NOTE: Throughout this manual, the term “click” is used to mean

“touch” when using the touch screen monitor.

Safety shields—

Used to protect against personnel and equipment damage when the

PNP head is in motion. Safety interlocks on the safety shields stop

movement of the gantry and PNP head if the shields are opened or

removed while the gantry is in operation.