2500_Users_Manual.pdf - 第173页

Preventi ve Mai nten ance ProM aster 25 00 User Manua l 5-19 Programming Electronics Boards and Assemblies The PE is composed o f two m ain units th at a re mount ed on th e underside of the handler’s m ain plate at the …

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5-18 ProMaster 2500 User Manual

Key: CPI = Number of characters per inch

L = Number of lines that can be printed on a label

Note: By reducing the margins, you may be able to print additional characters

and lines on the labels.

Table 5-2

ProMaster 2500 Label Print Guide (Thermal Printer)

Typical

Application

Label Model

Number &

Dimensions

Number of Characters per Line

11 CPI 16 CPI 19 CPI 22 CPI 28 CPI

28 CPI

Short

300 MIL DIP

(14-20 PIN)

QF-06-20

3/16” X 5/8”

(.187” X .625”)

(L=1)

(L=1 )

(L=2)

(L=3)

300 MIL DIP

(20-28 PIN)

QF-06-24

3/16” X 3/4”

(.187” X .750”)

(L=1)

(L=2)

(L=3)

300 MIL DIP

(24-28 PIN)

QF-06-26

3/16” X 13/16”

(.187” X .812”)

(L=2)

(L=1)

(L=2)

(L=3)

600 MIL DIP

(24-40 PIN)

QF-14-32

7/16” X 1”

(.437” X 1.00”)

(L=1)

(L=2)

(L=3)

300 MIL DIP

(8 PIN) or

20 PIN PLCC

QF-06-09

3/16” X 9/32”

(.187” X .281”)

(L=1)

(L=2)

(L=3)

28 PIN PLCC QF-09-09

3/16” X 9/32”

(.281" X .281")

(L=1)

(L=2)

(L=3)

32 PIN PLCC QF-12-12

3/8” X 3/8”

(.375” X .375”)

(L=1)

(L=2)

(L=3)

44 - 84 PIN

PLCC

QF-16-16

1/2” X 1/2”

(.500” X .500”)

(L=1)

(L=2)

(L=3)

* There will be no space between the three lines, but the characters will be readable.

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ProMaster 2500 User Manual 5-19

Programming

Electronics Boards

and Assemblies

The PE is composed of two main units that are mounted on the underside

of the handler’s main plate at the programming station.

The PE’s major assemblies are described in the following section.

•

Power Supply

—The input AC generates +15V DC that is routed to

the controller/waveform board’s internal power supply circuits.

•

Controller/waveform Board

—Uses +15V (from the power supply) to

generate a precise +10V reference. This reference acts as an input to

12-bit DACs that help generate numerous voltages (+/- 5V DC, +/-

8V DC, +10V REF, +13V DC, -15V DC, +25V DC, and +36V DC) for

use primarily on the pin driver board(s). The center of the controller

circuitry is a 68000 microprocessor that controls system operation

using 64K of Flash EPROM, system RAM, and 8 MB of user RAM.

Two RS-232C ports are located on this board and use the PE’s

SmartPort software feature to toggle the cables DTE and DCE lines

until a connection is established.

The floppy disk controller provides the signal interface between the

main system and the disk drive. A special circuit called the pin

control unit (PCU) acts as a coprocessor that controls read/write and

timing signals to the pin driver boards. A 68-pin and a 50-pin cable

carry control signals and supply voltages from the control unit base

to the pin driver board(s).

•

Mass Storage Module

(MSM) — The internal hard drive. Under the

default configuration for the 2500, algorithm files are automatically

installed on the MSM when you update system software. The MSM is

partitioned into 4 logical drives:

•

User data drives C

and

31MB and 512 maximum files each.

•

System data drives H

and

: 7MB and 10MB respectively with 320

maximum files each. Reserved for operating system files.

•

Disk Drive

—Double-sided, quad-density (1.44 MB formatted), 3.5-

inch disk drive reads the PE system disk to load updated commands

into system RAM and the MSM. It can also be used to load data files

into user RAM.

•

Relay Board

—Controls the flow of signals between the controller/

waveform board and the pin driver board(s). Cables from the

controller unit connect to the pin driver head through the relay

board. These signals are routed to the pin driver board(s) and then

through the relay board to the device to be programmed. Relays on

this board are energized to provide hard V

and GND levels to

device pins as required by the programming algorithm.

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5-20 ProMaster 2500 User Manual

•

Pin Driver Board(s)

—Internally generated supply voltages serve as

inputs to the pin driver circuits from the waveform section of the

controller/waveform board. Control signals from the PCU

coprocessor on the controller/waveform board are also received and

used by the pin driver circuitry on the board to shape programming

waveforms. The pin driver controls the signal slew rates, current

source, and voltage levels required to provide precise programming

signals to the device installed in the programming module. These

signals are routed through the relay board to the SPA block and then

to the device.

•

Squirt Pin Assembly (SPA Block)

—This assembly has no active

circuitry but provides the shortest possible signal path between the

signal source and the device installed in the programming module.

•

Programming Modules

—Act as the interface between the device to

be tested/programmed and the PE. Modules are available for 300-

and 600-mil. (0.300-inch and 0.600-inch wide) DIP devices; 20-, 28-,

32-, 44-, 52-, 68-, and 84-pin PLCC devices; and 150-, 300-, 400-, and

500-mil SOIC devices. DIP modules use high quality contact sets to

establish contact with the device pins. PLCC devices are inserted into

a self-funneling programming block to achieve correct alignment.

The PE

Device List

disk (included in each update kit) lists the

supported devices and which programming module to use for a

specific device.

Self-calibration

The PE performs an automatic self-calibration of its supplies each time

the programmer is powered up and the self-test is run. The internal

power supply outputs +15V DC to the waveform section of the

controller/waveform board. This acts as the input to a precision voltage

regulator that outputs a +10V REF supply. This REF supply is used as the

input to digital-to-analog converter (DAC) controlled voltage and current

source circuits on the waveform board. One DAC outputs a comparator

reference (Comp Ref) voltage and the +10V REF supply is used to confirm

that the DAC output is correct.

The Comp Ref voltage is used, in turn, to verify the correct output voltage

levels of other supplies on the board. Additional comparator reference

levels are used on the pin driver board to confirm the output voltages as

they appear at the programming module. Overcurrent detection circuitry

is also tested during self-calibration. Waveform timing is derived from a

crystal-controlled programmable clock, which is driven off the main

system clock.

Programming Devices

The PE responds to computer remote control commands issued by

TaskLink, running on the PC. Data to be programmed into a device is

usually loaded from a master device or from a file. When a master device

is selected, the handler inserts the device into the programming module,

then the PE reads that data through the programming module contacts,

SPA pins, and pin drivers. Device data is stored in user RAM on the

controller/waveform board as an image of the fuses in the device. This

RAM data is preserved until a new device is loaded, RAM is changed by

the user, or the programmer is powered down.