WELCOME TO

THE INDUSTRIAL WIKI

RESEARCH CONTENT IN GREATER DETAIL
Talk Page

PI-TOUCH DEVICE

Print
Email
Save
Social

Touch-Screen Operation

A touch-screen operator control terminal, or Pi-touch, is used to:

  • Monitor an SRM in the Automatic mode
  • Control an SRM in the Manual and Emergency modes

The touch-screen is equipped with an 8-foot connecting cable, a connector, and a power switch. The Pi-touch control terminal can be connected at the following locations:

  • End-of-aisle control panel
  • On-board control panel, which is located on the SRM
  • Cab control desk

Pi-touch functionality is dependent on the connection location. Some functions are not permitted in specific locations. The SCS recognizes the location of the Pi-touch control terminal based on the connection.

Menu

Pi-Touch Control Terminal

The Pi-touch control terminal is used to manually input commands to move the SRM.


Figure 1: Pi-Touch Control Terminal

Main Menu Screen


Figure 2: Main Menu Screen

Manual Control XJY Screen


Figure 3: Manual control X/Y screen

Manual Control X/Y Screen Functions

  • Status Bar: The two lines at the top of the screen make up the status bar and provide the operator with the current SRM operating mode, SRM status, and SRM fault status.
  • Position Text: Displays the nearest rack location for both the X and the Y axis. The circle will illuminate when the axis is in a taught position. The LHD indicator will illuminate when the load handling device is centered.
  • Travel Commands: The left part of the screen contains selections for entering travel commands that control the horizontal and vertical travel drives.
    • The drives are active as long as the selections are touched.
    • Three speeds are available to the operator for forward/reverse and lifting/lowering. The speeds are indicated by the number of arrows on the selection; one arrow indicates V1, two arrows indicate V2, and three arrows indicate V3.
  • LHD depth: Provided for information only.

Manual Control X/Y Screen Buttons

  • Status Bar: The two lines at the top of the screen make up the status bar and provide the operator with the current SRM operating mode, SRM status, and SRM fault status.
  • Position Text: Displays the nearest rack location for both the X and the Y axis. The circle will illuminate when the axis is in a taught position. The LHD indicator will illuminate when the load handling device is centered.
  • Travel Commands: The left part of the screen contains selections for entering travel commands that control the horizontal and vertical travel drives.
    • The drives are active as long as the selections are touched.
    • Three speeds are available to the operator for forward/reverse and lifting/lowering. The speeds are indicated by the number of arrows on the selection; one arrow indicates V1, two arrows indicate V2, and three arrows indicate V3.
  • LHD depth: Provided for information only.

Manual Control X/Y Screen Buttons

  • Display Fault: In case of a fault, the user can view the fault details by touching Display fault.
  • Reset Fault: Once the operator has corrected the fault condition, the fault can be reset by touching the Reset fault selection.
  • Man. at Automatic: In manual at automatic control, operating personnel can control horizontal, vertical, and load axis travel at reduced speeds.
    • For manual control from the end-of-aisle control panel, the operator will select Man. at automatic on the Manual control X/Y screen. This selection allows the operator to switch over to "manual" control without switching off "automatic" control and is only available from the end-of-aisle control panel.
    • When the selection is active, both the Man. at automatic selection and the START AUTOMATIC button on the end-of-aisle control panel will flash to signal that the manual at automatic mode is active.
    • The user must first deactivate Manual at Automatic before selecting another mode of operation. To deactivate Manual at Automatic mode, touch the Man. at automatic selection again. The Man. at automatic selection and the START AUTOMATIC button will no longer flash.
  • LHD Control: Touch-screen navigates to the Control LHDs screen.
  • Main Menu: Returns to the Main menu screen.

Display Fault Screen

To navigate to the Display fault screen, the user must touch the Display fault selection on the Manual control XN screen. The Display fault screen will appear.


Figure 4: Display Fault Screen

The Display fault screen shows the fault text for the active fault and offers the operator the following options: Reset fault, Quit fault display, and Main menu.

  • Reset fault: Once the operator has eliminated the fault condition, the fault can be reset by touching the Reset fault selection.
  • Quit fault display: Displays the previous screen.
  • Main menu: Returns to the Main menu screen.

Control LHDs Screen

To navigate to the Control LHDs screen, the user must touch the LHD control selection on the Manual control X/Y screen. The Control LHDs screen will appear.


Figure 5: Control LHDs Screen

Control LHDs Screen Functions

  • Status Bar: The two lines at the top of the screen make up the status bar and provide the operator with the current SRM operating mode, SRM status, and SRM fault status.
  • Position Text: Displays the nearest rack location for both the X and the Y axis. The circle will illuminate when the axis is in a taught position. The LHD indicator will illuminate when the load handling device is centered.
  • Travel Commands: The left part of the screen contains selections for entering travel commands that control the horizontal and vertical travel drives.
    • The drives are active as long as the selections are touched.
    • Three speeds are available to the operator for forward/reverse and lifting/lowering. The speeds are indicated by the number of arrows on the selection; one arrow indicates V1, two arrows indicate V2, and three arrows indicate V3.
  • LHD depth: Allows the user to select the depth of fork travel into the rack.

LHD Control Screen Buttons

  • Display fault: In case of a fault, the user can view the fault display by touching Display fault.
  • Reset fault: Once the operator has eliminated the fault condition, the fault can be reset by touching the Reset fault selection.
  • Man. at automatic: See Manual Control X/Y Screen Buttons above.
  • LHD-CYCLE: When the LHD is near a taught position, the use of this button will automatically align the LHD to the taught position. When using this function, the operator must touch the button until the full cycle is complete. The LHD cycle performed depends on the following:
    • If a load is on-board, the LHD will perform a drop.
    • If a load is not on-board, the LHD will perform a pick.
  • X/Y control: Touching the X/Y control selection navigates to the Manual control X/Y screen.
  • Main menu: Returns to the Main menu screen.

Servicing Screen

The Servicing screen allows the user to select and perform service functions. To navigate to the Servicing screen, the user must touch the Servicing button on the Main menu screen.


Figure 6: Servicing Screen

Button

Function

Reset teach-in values

Displays theReset teach-in valuesscreen and allows the user to initiate a teach run of the SRM in either the X or Y axis.

Reset encoders

Displays theResetting encodersscreen and allows the user to initiate a zeroing of the X-, Y-, or Z-axis encoders.

Encoders and speeds

Displays theAxis encoder value and speedscreen and allows the user to monitor millimeter position data, rack position data, and axis speed.

Resetting Teach-In Values Screen

To navigate to the Resetting teach-in values screen, the user must touch the Reset teach-in values button located on the Servicing screen.


Figure 7: Resetting Teach-In Values Screen

The Resetting teach-in values screen is used to initiate a teach run of the SRM in either the X or Y axis. Teach-in values must be reset when excessive positioning errors occur or new positions have been added to the rack system. Excessive positioning errors occur when reflective targets/magnets have been moved or damaged.

1. Set the operating mode to a mode other than Automatic.

2. On the touch-screen, touch the X and/or the Y selection(s) to select the axis for teaching. The selection(s) will illuminate when selected. To de-select a single axis, press the illuminated selection. To de-select both axes, press the Abort selection.

3. When the correct axis selection(s) is selected and illuminated, press the Entry OK selection to initiate the teach function.

4. If resetting was successful, the axis selection(s) will extinguish.

5. Return the SRM to the Automatic mode.

After the re-teach has been initiated, the first command sent to the SRM will start the teach command. The SRM will return to the last target and automatically reset the encoder for the selected axis. The SRM will move at reduced speeds along the axis being taught and record the location of all magnets/reflective targets associated with the axis. Upon completion of the teach command, the SRM will proceed with the mission.

Resetting Encoders Screen

To navigate to the Resetting encoders screen, the user must touch the Reset encoders selection located on the Servicing screen.


Figure 8: Resetting Encoders Screen

The Resetting encoders screen is used to initiate a zeroing of the SRM's X- or Y-axis encoders. Resetting the encoders should be done when the X-axis laser or Y-axis encoder is moved or replaced, or if the vertical-positioning belt has been worked on by the maintenance staff.

1. Set the operating mode to the Emergency mode.

2. On the touch-screen, touch the X and/or the Y selection(s) to select the axis for teaching. The selection(s) will illuminate when selected. To de-select a single axis, press the illuminated selection. To de-select both axes, press the Abort selection.

3. When the correct axis selection(s) is selected and illuminated, press the Entry OK selection to initiate the teach function.

4. If zeroing was successful, the axis selection(s) will extinguish.

Axis Encoder Value and Speed Screen

To navigate to the Axis encoder value and speed screen, the user must touch the Encoders and speed selection located on the Servicing screen.


Figure 9: Axis Encoder Value and Speed Screen

The Axis encoder value and speed screen is a maintenance and diagnostic screen that is used to monitor millimeter position data, rack position data, and axis speed. Manual motion is also possible for each axis from this screen.

  1. Axis: Used to select axis that will be moved or monitored
  2. LHD Depth: Used to select the fork depth prior to movement
  3. Drive Axis: Drives the currently selected axis