Re: [CAD_CAM_EDM_DRO] P-Port Buffer

8/12/02 7:32:58 PM, Country Bubba <axtein@...> wrote:

>Doug,
>You got a taker! :-})

Here they are. I already sent the DXF to Dave Hylands who is supposed to upload that one.

Doug

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WB8 Terminal List rev.0 7/8/01



Screw terminals are numbered from left to right facing the
terminal block. I.E. the 5V converter will be on the left and
the electrolytic capacitor will be on the right. Odd numbers
are on the upper row, even on the lower.



Term Name/Function Notes

1 GND EXT. Return for X limit switch

2 XLIM (S3) X Limit, parallel port status line 3

3 GND EXT. Y limit return

4 YLIM (S4) Y Limit, parallel port status line 4

5 GND EXT. Z limit return

6 ZLIM (S5) Z Limit, parallel port status line 5

7 GND EXT. W limit return

8 WLIM (S6) W Limit, parallel port status line 6

9 GND EXT. E-stop/Feed-hold return

10 ESTOP (S7) E-stop/Feed-hold, status line 7

11 STAT+ Amp status opto output +

12 STAT- Amp status opto output -

13 AMPEN Amp enable

14 AMPDIS Amp disable

15 GND EXT. Return for enable and disable

16 ENC- (GND EXT.) To amp encoder neg. term.

17 AMPSTW To W amp enable/disable term.

18 AMPSTZ To Z amp enable/disable term.

19 AMPSTY To Y amp enable/disable term.

20 AMPSTX To X amp enable/disable term.

21 DIRW (D7) W direction, parallel port data line 7

22 STEPW (D6) W step, parallel port data line 6

23 DIRZ (D5) Z direction, parallel port data line 5

24 STEPZ (D4) Z step, parallel port data line 4

25 DIRY (D3) Y direction, parallel port data line 3

26 STEPY (D2) Y step, parallel port data line 2

27 DIRX (D1) X direction, parallel port data line 1

28 STEPX (D0) X step, parallel port data line 0

29 COMP5V+ To amp S/D opto 5V+ input

30 COMP5V+ To amp S/D opto 5V+ input

31 COMP5V+ To amp S/D opto 5V+ input

32 COMP5V+ To amp S/D opto 5V+ input

33 COMP5V- 5V- from computer (spare)

34 COMP5V- 5V- from computer (spare)

35 C0- Control out neg. ,lpt control line C0

36 C0+ Control out pos. ,lpt control line C0

37 C1- Control out neg. ,lpt control line C1

38 C1+ Control out pos. ,lpt control line C1

39 C2- Control out neg. ,lpt control line C2

40 C2+ Control out pos. ,lpt control line C2

41 C3- Control out neg. ,lpt control line C3

42 C3+ Control out pos. ,lpt control line C3







Overview of WB8



WB8 was developed specifically to interface a PC running CNCPro
software to the Geckodrives G201/210 and G320/340 amplifiers. A
brief explanation of how to connect averything up follows.



LIMIT SWITCHES (terminals 1-10)

Power for the limit and E-stop circuits is supplied by a
Burr-Brown DCP01B isolated converter and are thus isolated from
the computer. Simply connect terminals 1 and 2 to the normally
closed contacts of the X limit switch, 2 and 3 for Y, etc. A
normally closed switch is safer in that the limit will trip if
the wire breaks.



AMP STATUS (terminals 11,12)

Term 11 is the collector and terminal 12 is the emitter of the
output transistor in an optoisolator. This output will sink up
to 20ma. You will need an external supply voltage of 5 to 25
volts DC.



AMP ENABLE (13), DISABLE (14)

These do as indicated when shorted to terminal 15, the external
ground. Works only with G320/340 servo amps.



ENCODER MINUS (16)

Another external ground, this one goes to pin 6 of a G320/340.
Makes the 5V Burr-Brown converter common with the G320/340 5V
supply.



AMP STATUS (17-20)

To pin 5 of the G320/340 servo amp. Allows WB8 to sense and
control amplifier state.



STEP/DIRECTION OUTPUTS (21-28)

These are buffered data lines but are NOT optoisolated. WB8 is
configured for +5V common. These lines pull the S/D pins of the
drive to ground.



COMPUTER +5V (29-32)

These are the +5V returns for the S/D lines. They are common to
the computer's +5V only if you use that source to power the
board.



CONTROL OUTPUTS (35-42)

These are the collector/emitter pairs from four optoisolators.
As with the amp status lines, they can sink up to 20ma each.
You will need an external supply voltage of 5 to 25 volts DC.



SUPPLY VOLTAGE

A 4 pin array is drilled at the left side of the board, next to
the electrolytic capacitor, for a computer power supply
receptacle. The holes are too small in the present batch of
boards and must be drilled out if you plan to use the
receptacle. A regulated 5V wallwart is preferred and can be
purchased from Jameco for about $7 as part number 164101. A two
pin screw terminal is provided for this purpose.



DIODES

Eight 914 signal diodes are used for the amp sensing circuit
(G320/340 only). Solder the supplied 16 pin header into the
board and then solder the diodes to it.


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M48
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X04605Y0207
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T04
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M30

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Date ;06/25/01
First Name ;Doug
Last Name ;Harrison
Address ;No 1 street
City ;Podunk
Prov/ST. ;Jorga
Country ;USA
PC/ZIP ;
Company ;Prototype Services
Area Code ;
Phone ;
Fax ;
Email Address ;prototype@...
CAD System ;Protel Easytrax (Easyedit)
Shipping Method;FEDEX
Shipping ACCNT#;
Credit Card# ;
Visa/MC ;
Exp. Date ;xx/xx
Cheque/MO# ;
PO # ;
SERVICE TYPE ;PROTO 1
Circuit Board Size (in DECIMAL INCHES);6.820 X 2.790
Quantity Required (even numbers only) ;2
GERBER TOP LAYER FILE NAME ;WB8B.GTL
GERBER BOTTOM LAYER FILE NAME ;WB8B.GBL
GERBER TOP SOLDER MASK FILE NAME ;N/A on P1
GERBER BOTTOM SOLDER MASK FILE NAME ;N/A on P1
GERBER TOP COMPONENT MASK FILE NAME ;N/A on P1
GERBER BOTTOM COMP MASK FILE NAME ;N/A on P1
GERBER APERTURE TABLE FILE NAME ;STANDARD.APT
ASCII NC DRILL FILE NAME ;WB8B.TXT
NC DRILL TOOL SIZE FILE NAME ;STDDRILL.NCD
SPECIAL INSTRUCTIONS FILE NAME ;

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