Slip Sheet Removal (SSR) GT Unit

Calibration | Commands | Description | Diagrams | NVS Parameters | Calibration

Description

The GT Slip Sheet Removal Unit consists of a compactor, rollers, and a slip sheet bin, and has a black handle on its bin access door (see photo of door handle). Also, the umbilical cable is permanently fixed to the unit (see photo of umbilical cable).

It should not be confused with the earlier SSR version, which has a purple door handle and a removable umbilical cable. This page describes only the GT SSR.

Basic Operation

1. The rollers turn on for approximately 3 seconds to pinch a sheet.
   

   The position of the slipsheet is shown in black. The MCU/SCU is on the left and the device is on the right.

2. The sheet is partially drawn into the precompression cavity while the picker moves the plate onto the load table. The rollers reactivate and pull the entire sheet into the precompression cavity.
   
3. While the rollers are running, the compactor arm extends and presses the paper into the storage cavity below the SSR motor drive unit.
   
4. The rollers shut off (stop turning).
   
5. The rollers open and close. As they move, the guides attached to the moving backbone clear the plunger face of any remaining slipsheet material.
   
6. The compactor returns to home position.
   
7. The rollers open, awaiting the next slipsheet.
   

Commands

• SSH RLR OPEN
  Separates the rollers and prevents the compactor from actuating.
• SSH RLR CLOSE
  Presses the rollers together, allowing the compactor to operate (if it is commanded to do so).
• SSH RLR ON
  The rollers rotate so that the slip sheets are drawn into the precompression cavity.
• SSH RLR OFF
  THe rollers stop turning.
• SSH COMPACTOR ON
  The compactor extends, clearing any slip sheet material out of the precompression cavity. The rollers should be ON during this operation.
• SSH COMPACTOR OFF
  The compactor retracts to its home position. If a slip sheet has just been compressed, type SSH RLR OPEN, then SSH RLR CLOSE to reactivate the compactor and ensure that a paper jam does not occur.
• SSH

  Displays the status of all compactor-related sensors. Data similar to the following should appear on the console screen:

  Slipsheet Bin status:
  SS rlr obstruction sensor	:  not blocked
  Ss Compactor Sensor	:  not blocked
  Ss Compactor Output	:  Compact
  Ss Bag is	:  In
  Slet bin door is	:  Closed
  Slipsheet rollers are	:  Open
  Slipst rollers output	:  Open
  Slipsheet roller motor	:  Off
  Slipsheet roller motor	:  not running
  Slipsheets meters in bin	:  31
  Slipsheet unit odometer	:  1088442453

NVS Parameters

• Set nci 0 for previous compactor without ss bag sensor
• Set nci 1 for GT SSR compactor (always with bag sensor)
• Set nci 2 for previous compactor with ss bag sensor
• Set nci 3 for previous compactor with wiring changes done for new SSR. No ss bag sensor.
  Note:  Avoid using "nci 3". It is a fallback position if there are problems with the GT SSR compactor after installation. Under "nci 3" the 'ss rlr closed' sensors will not work, slowing the machine significantly.

Diagrams

• For the safety circuit, see under Wiring Diagrams on the Drawings-Photos page.
• For pneumatics, see under Pneumatic Schematics on the Drawings-Photos page.

Calibration

• Calibrating the SSR Motor Drive Unit

For other SSR unit procedures, see the Procedures page.