Training I - CougarTechhflrobotics.com/resources/Training/1-Tools and Safety...Schematic - Library...
Transcript of Training I - CougarTechhflrobotics.com/resources/Training/1-Tools and Safety...Schematic - Library...
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Training I
Electrical Tools & Processes
Team 2228 CougarTech | 1
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Safety Considerations
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Safety glasses are required.
Wash hands after handling solder.
Consider heat guns and soldering irons to be hot.
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ObjectivesUnderstand:- Wire and wire gauge
- Tools to wire the robot
Demonstrate:- Crimping a wire
- Splicing and soldering a wire
- Measuring voltage, resistance, and amperage
Understand Electrical Design Process
Understand how to develop Electrical SchematicsTeam 2228 CougarTech | 3
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Wire and Wire Gauge
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FRC General Guideline
6 AWG Battery 120A
10 AWG
Motors 40A
12 AWG
14 AWG
Custom Circuit30A
20A16 AWG
18 AWG Controls 20A
22 AWG RoboRIO 10A
<22 AWG Signal <10A
AWG - American Wire Gauge
Copper Aluminum
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Cutting Wire
Diagonal cutters Lineman pliersSmall gauge wire Large gauge wire
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Stripping Wire- Only strip off the correct
amount of insulation
- Do not nick the conductor
- Twist the strands
to prevent fraying
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Manual Automatic
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Crimping a Connector1.Match wire size, crimp
connector size, and crimp tool
2. Strip so wire extends slightly
through connector and
insulation touches sleeve
3. Place crimper on front part of
connector
4. Push the handles together until
the crimp is flattened
5. Pull test the wire
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10-12
14-16
18-22
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Crimping Motor Connectors
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1. Strip wire
2. Put heat shrink on wire
3. Crimp wire to terminal (10-12)
4. Solder wire to terminal
5. Shrink - heat shrink over terminal and wire
Motor SidePower Side
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Soldering a Splice1. Use correct size iron and appropriate
temperature
2. Mechanically join wires
3. Support workpiece
4. Clean soldering iron tip and add a
small amount of solder to the tip
5. Heat workpieces, not the solder
6. Touch solder to the heated work,
allow it to flow throughout work
7. Remove solder, then the iron
Team 2228 CougarTech | 9Third Hand
Heat wire not solder
SolderSoldering Iron
Lineman
Splice
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Heat Shrinking a Splice1. Use a size that goes on easy but
is not too loose
2. Slide on heat shrink on before
soldering
3. Ensure heat shrink covers the
conductor and provides
mechanical support
4. Use a heat gun to heat tubing until
it shrinks to tightly cover
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Desoldering
Heat solder until it flows
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Solder Wick Desoldering PumpWicks up solder Pulls solder into tube
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Securing Your Wires
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Tie Wrap Gun
Tie Wraps
Tie Wrap Mounts
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Measuring a Circuit
Volts DC
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Resistance
Volts AC
Amperage
Continuity
Amps
Volts/Resistance/Continuity
Common
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Schematic - Best Practices
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>
>
MC2
M2
wht
Grn
M2 MC2
Blk
Red
Talon SRXPDP0
H
HL
L
H
HL
L
GrnYel
GrnYel
RioCAN
Yel
Yel
Grn
Grn
TB1
TB2
MC3<<
<<Lim Fwd
<<
<<Lim Rev
<<+
<<S
<<G
Analog
>>
<<B
<<+
<<A
<<Index
<<G
Encoder
TSUB2
NCFL2TSUB2FL2
NC
RL2
TSUB2RL2
ENC2
ENC2TSUB2
Cable Tags
Signal Flow; Input-to-output
Pinsocket
Normally: Power is on Sockets
Add wire color
“Symbol layout
looks like part
layout”
Where wires
came from
Power Flow; Sequence Flow
1024 CPR
Add tech info
CIM
Signal (Wht or other color)
Gnd (Blk)Power (Red)
Std 3 pin wiringPin 1 mark on
connector
Plug in PCB board
Power: Top To Bottom
Signal: Left to Right
Symbol Inputs: From Left
Symbol Outputs: To Right
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Robot Wiring
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or THISThis
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Knowledge Challenge
1 What two tools can burn you?
2 What do you test after crimping a wire to a lug?
3 How do you clean your soldering iron tip?
4 What goes on the wire first before soldering two wires
together?
5 What three things does a multimeter measure?
5 The smaller awg number is the bigger the …..
6 What do you do with excess wire on a robot?
7 What is a schematic?
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Labs
CrimpingCut and strip a wire. Crimp a terminal to this wire.
SolderingCut and strip two wires. Splice them back together.
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Electrical Schematics
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Two types of CAD programs are used for electrical schematics:
Industrial Control wiring: AutoCAD or AutoCAD Electrical
➢ Used 2D CAD using text and lines or special control software
Electronic Wiring(EDA): Tiny CAD, Eagle, DesignSpark, Web
based: EasyEDA, Schemelt(Digikey)
➢ Schematics are drawn in a power point environment with
intelligence in symbols and wires
➢ EDA software allows the user to interface to printed circuit
board(PCB) software, circuit simulation software(SPICE)
EDA – Electronic Design Automation
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Schematic – Page Setup
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ANSI-ISO-Size
A-A4 – 8 ½ x 11
B-A3 – 11 x 17
C-A2
D-A1
E-A0
Use A4 or A3. For A3 print: “Scale to Fit Paper”
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Schematic – Setup Title Block
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After filling in the title save drawing.
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Schematic – Drawing setup
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Select Ruler mm units and fine grid spacing
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Schematic – Drawing Colors
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Use default colors
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Schematic – Tool Bar
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Open/Close Library list
Zoom; also mouse wheel will zoom
Delete selection;
also “Del” key
Exit an operation; also “ESC” will
exit an operation
Rotates a selection
To Pan drawing Horz/Vert use
scroll bars or press down on
mouse wheel
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Schematic – Horz/Vert Guide lines
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Click on Horizontal rule
Then click on drawing to add a guide
Click on Vertical rule
Then click on drawing to add a guide
To delete guide: select guide and Delete
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Schematic – Place a Symbol
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Select a symbol
from Library
Left Click on drawing to place the
symbol
Symbol Characteristics
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Schematic – Wiring Tools
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Not used – built in when you end on a wire
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Schematic - Working with Symbols
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Edit a Library
Create a new Library
Remove a Library from List
Add a Library from Library
Directory
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Schematic - Library Symbol Edit Options
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Right Click on symbol for
options
Select Library and then “Edit” option from
Libraries option
To exit:
Save work or select
drawing from
“Window”
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Schematic – Shape Drawing Tools
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Select Tool and size on drawing
To exit a tool: “ESC” or click on
drawing surfaceTo exit polygon tool – right click and then
select end polygon
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Schematic - Best Practices
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>
>
MC2
M2
wht
Grn
M2 MC2
Blk
Red
Talon SRXPDP0
H
HL
L
H
HL
L
GrnYel
GrnYel
RioCAN
Yel
Yel
Grn
Grn
TB1
TB2
MC3<<
<<Lim Fwd
<<
<<Lim Rev
<<+
<<S
<<G
Analog
>>
<<B
<<+
<<A
<<Index
<<G
Encoder
TSUB2
NCFL2TSUB2FL2
NC
RL2
TSUB2RL2
ENC2
ENC2TSUB2
Cable Tags
Signal Flow; Input-to-output
Pinsocket
Normally: Power is on Sockets
Add wire color
“Symbol layout
looks like part
layout”
Where wires
came from
Power Flow; Sequence Flow
1024 CPR
Add tech info
CIM
Signal (Wht or other color)
Gnd (Blk)Power (Red)
Std 3 pin wiringPin 1 mark on
connector
Plug in PCB board
Power: Top To Bottom
Signal: Left to Right
Symbol Inputs: From Left
Symbol Outputs: To Right