2015:Electrical Main: Difference between revisions

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*<span style="font-size:medium;">flag sensor for inner home position</span>
*<span style="font-size:medium;">flag sensor for inner home position</span>
*<span style="font-size:medium;">the motor is a&nbsp;RS550</span>
*<span style="font-size:medium;">the motor is a&nbsp;RS550</span>
*<span style="font-size:medium;">2 (or 1?) banner sensors out on grippers for tote acquisition (previously ultrasonic distance sensor)</span>
*<span style="font-size:medium;">1&nbsp;banner sensors out on grippers for tote acquisition</span>
*<span style="font-size:medium;">Flag (?) sensor for wide tote config</span>
*<span style="font-size:medium;">Flag (?) sensor for wide tote config</span>


Line 48: Line 48:
**Sensor off-state leakage is 10uA max.
**Sensor off-state leakage is 10uA max.
**Sensor on-state logic low is 0.5V max @ 10mA max
**Sensor on-state logic low is 0.5V max @ 10mA max
*RoboRIO DIO [0..9]  
*RoboRIO DIO [0..9]
**Have internal 40K pullup resistors to +3.3Vdc
**Have internal 40K pullup resistors to +3.3Vdc
**RoboRIO DIO VIL=0.8V max
**RoboRIO DIO VIL=0.8V max
Line 59: Line 59:
**So no external interface circuit is required - the Banner Sensor detector of this type (NPN O.C.) may be wired directly to the RoboRIO DIO.
**So no external interface circuit is required - the Banner Sensor detector of this type (NPN O.C.) may be wired directly to the RoboRIO DIO.
**If desired, however, a lower resistance pullup could be added to lower the impedance of the interface, which might help reduce susceptibility to electrical interference. &nbsp;(minimum value of pullup approx. 2.7Kohms to still give good margin for logic low condition, with&nbsp;1mA current sink.)
**If desired, however, a lower resistance pullup could be added to lower the impedance of the interface, which might help reduce susceptibility to electrical interference. &nbsp;(minimum value of pullup approx. 2.7Kohms to still give good margin for logic low condition, with&nbsp;1mA current sink.)
== Wire Bundle to Gripper Notes ==
IN CHANNEL WIRES
1 RS 550 Motor - 2-wire, 10/12 AWG
1 Encoder both phases - 4-wire (5V, GND, ENC-A, ENC-B)&nbsp;20-22 AWG
2 Flag sensors - 2 shared wire for emitter, 1 wire ground share for detector, 1 wire each for detector signal
  TOTAL = 5 wires, 20-22 AWG
1 Banner sensor - 2 wire 12V for emitter & collector - 1 wire for detector signal - 20-22 AWG
  TOTAL = 3 wire
'''Cable Colors to Box Colors:''' White Orange - Blue&nbsp;
Orange - Orange
White Green - Black
Blue - Red
White Blue - Green
Green - Yellow
White Brown - Brown
Brown - White
'''Box to Box Connection (Split Ethernet)'''
<u>Functions:</u>
1) Encoder Phase
2) 5V
3) GND
4) 12V
5) Flag Left (secondary)
6) Flag Right (primary)
7) Encoder Phase
8) NC
<u>Colors:</u>
1) White Brown
2) Orange
3) White orange
4) White blue
5) White Green
6) Brown
7) Blue
8) Green
'''Signal/Power to Box Mapping:''' Black - Ground
Red - 12V
Orange - 5V
Blue - Banner Sensor Detector Signal
Green - Encoder A
Yellow - Encoder B
Brown - Gripper Flag Primary
White - Gripper Flag Secondary
<br/>10/12 AWG
+/- 12V for motor
<br/>9 -- 20/22 AWG (8 if common GND for all sensors) 5V Digital GND
Enc PA, Enc PB
12V for flag sensors (Robot2 used 5V for flag sensors), PD GND
3 Detector signals
*PD GND and Digital GND the same


= Robot Indicators =
= Robot Indicators =


*Lift Position
*Lift Position
**LED strips on rear of lift which indicate gripper height position
**"Bar Graph" style display on LED panel
**"Bar Graph" style display
**Adressable type LED strips so that can be turned on/off individually
**Adressable type LED strips so that can be turned on/off individually
*Gripper Open Width
*Gripper Open Width&nbsp;
**LED strips on rear of lift at the gripper leadscrew&nbsp;
**"Bar Graph" style display from the center on LED panel
**"Bar Graph" style display from the center
**Addressable type LED strips so that can be turned on/off individually
**Addressable type LED strips so that can be turned on/off individually
**When gripper Banner sensor is tripped (tote within grippers), LEDS change color
**When gripper Banner sensor is tripped (tote within grippers), LEDS change color
*Other Functions
**LED strips at top of lift on front and back (just below cameras)
**Indicate drive shifter&nbsp;high gear or low gear
**Indicate strafing wheel down
*LED Strip driver requirements
**30LED/m strip is 2A/m (9.5W)
**60LED/m strip is 3.6A/m (18W) - preferred for high resolution "bar graph" display
**Estimated total LED strip length for robot is 2.5m
**Total 5Vdc current requirement for 60LED/m is 10.8A for 3m
**12v to 5v converter from previous year's robots (used for wireless gateway) can do 5A.


= Component Specifications =
= Component Specifications =
Line 82: Line 195:
[[File:PCM-Users-Guide.pdf|Pneumatics Control Module]]
[[File:PCM-Users-Guide.pdf|Pneumatics Control Module]]


[[File:VRM_User_Guide.pdf|Voltage Regulator Module]]
[[File:VRM User Guide.pdf|Voltage Regulator Module]]


[[File:RevRoboticsMoreBoard.pdf|Rev Robotics RoboRIO Expansion Board]]
[[File:RevRoboticsMoreBoard.pdf|Rev Robotics RoboRIO Expansion Board]]
[[File:Atmel_ATmega32U4.pdf|Arduino processor data sheet]]


[[File:2013 Motor Data Table.xls|2013 Motor Data]]
[[File:2013 Motor Data Table.xls|2013 Motor Data]]


[[File:2013 MotorCurves.xls|2013 Motor Performance Curves]]
[[File:2013 MotorCurves.xls|2013 Motor Performance Curves]]
[[File:2015 Motor Information.pdf|2015 Motor Data]]


[[Sensors]]
[[Sensors]]

Latest revision as of 13:31, 1 March 2015

IO Interface Map

2015:Robot IO Map


Sensors

Drive Base:

  • two encoders (left and right)
  • two channels for each encoder
  • gyro and accelerometer compound board (am-2067, containing ADXL245 & ADW22307)
  • Need to use strafing in autonomous​!
  • 2-speed shifter (pneumatic)

​Lifter:

  • flag sensor at bottom/home for calibration
  • flag sensor at highest extent
  • 63R256 encoder for interpolation between top/bottom
  • do we need hard stops?
  • lifter needs to be physically removed
  • 2 RS775-18 motors
  • 1 Camera (Stationary)
  • bike brake with pneumatic actuation (double acting cylinder, single solenoid)

​Gripper:

  • 63R256 encoder after gearbox output
  • flag sensor for inner home position
  • the motor is a RS550
  • 1 banner sensors out on grippers for tote acquisition
  • Flag (?) sensor for wide tote config

​Stabilizer:

  • pneumatic on/off (single solenoid, dual acting cylinder)

Interface Circuits

  • Q10 Series (Q10AN6R Detector)
    • Sensor is NPN open-collector output
    • Sensor off-state leakage is 10uA max.
    • Sensor on-state logic low is 0.5V max @ 10mA max
  • RoboRIO DIO [0..9]
    • Have internal 40K pullup resistors to +3.3Vdc
    • RoboRIO DIO VIL=0.8V max
    • RoboRIO DIO VIH=2.0V min.
  • Interface Circuit
    • Sensor off-state leakage of 10uA through RoboRIO pullup of 40K drops 0.4V, so logic high is 3.3V - 0.4V = 2.9V
    • Logic high is safely above RoboRIO VIHmin of 2.0V
    • Sensor on-state logic low of 0.5V is safely below RoboRIO VILmax of 0.8V.
    • The current that the sensor must sink is (3.3V - 0.5V) / 40Kohms = 70uA, which is well below the max sinking capability of the sensor of 10mA.
    • So no external interface circuit is required - the Banner Sensor detector of this type (NPN O.C.) may be wired directly to the RoboRIO DIO.
    • If desired, however, a lower resistance pullup could be added to lower the impedance of the interface, which might help reduce susceptibility to electrical interference.  (minimum value of pullup approx. 2.7Kohms to still give good margin for logic low condition, with 1mA current sink.)

Wire Bundle to Gripper Notes

IN CHANNEL WIRES

1 RS 550 Motor - 2-wire, 10/12 AWG

1 Encoder both phases - 4-wire (5V, GND, ENC-A, ENC-B) 20-22 AWG

2 Flag sensors - 2 shared wire for emitter, 1 wire ground share for detector, 1 wire each for detector signal 

  TOTAL = 5 wires, 20-22 AWG

1 Banner sensor - 2 wire 12V for emitter & collector - 1 wire for detector signal - 20-22 AWG 

  TOTAL = 3 wire


Cable Colors to Box Colors: White Orange - Blue 

Orange - Orange

White Green - Black

Blue - Red

White Blue - Green

Green - Yellow

White Brown - Brown

Brown - White


Box to Box Connection (Split Ethernet)

Functions:

1) Encoder Phase

2) 5V

3) GND

4) 12V

5) Flag Left (secondary)

6) Flag Right (primary)

7) Encoder Phase

8) NC


Colors:

1) White Brown

2) Orange

3) White orange

4) White blue

5) White Green

6) Brown

7) Blue

8) Green


Signal/Power to Box Mapping: Black - Ground

Red - 12V

Orange - 5V

Blue - Banner Sensor Detector Signal

Green - Encoder A

Yellow - Encoder B

Brown - Gripper Flag Primary

White - Gripper Flag Secondary


10/12 AWG

+/- 12V for motor


9 -- 20/22 AWG (8 if common GND for all sensors) 5V Digital GND

Enc PA, Enc PB

12V for flag sensors (Robot2 used 5V for flag sensors), PD GND

3 Detector signals

  • PD GND and Digital GND the same

Robot Indicators

  • Lift Position
    • "Bar Graph" style display on LED panel
    • Adressable type LED strips so that can be turned on/off individually
  • Gripper Open Width 
    • "Bar Graph" style display from the center on LED panel
    • Addressable type LED strips so that can be turned on/off individually
    • When gripper Banner sensor is tripped (tote within grippers), LEDS change color
  • Other Functions
    • LED strips at top of lift on front and back (just below cameras)
    • Indicate drive shifter high gear or low gear
    • Indicate strafing wheel down
  • LED Strip driver requirements
    • 30LED/m strip is 2A/m (9.5W)
    • 60LED/m strip is 3.6A/m (18W) - preferred for high resolution "bar graph" display
    • Estimated total LED strip length for robot is 2.5m
    • Total 5Vdc current requirement for 60LED/m is 10.8A for 3m
    • 12v to 5v converter from previous year's robots (used for wireless gateway) can do 5A.

Component Specifications

File:Talon-SRX-Info-Sheet.pdf

File:RoboRIO User Manual.pdf

File:RoboRIOspecifications.pdf

File:PCM-Users-Guide.pdf

File:VRM User Guide.pdf

File:RevRoboticsMoreBoard.pdf

File:Atmel ATmega32U4.pdf

File:2013 Motor Data Table.xls

File:2013 MotorCurves.xls

File:2015 Motor Information.pdf

Sensors

Servos

LED Strips

Micro Switches

Electrical Inventory

File:MX5 CircuitBreaker.pdf

File:VB3 CircuitBreaker.pdf

US Digital Encoders Link

Electrical Indicators Reference Link

Archives

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