Automatic control for Hog Slat® pit scraper system allows unit to function automatically at adjustable intervals while also allowing manual activation as needed.
||Automatic Pit Scraper Controller only
||(1) Automatic Pit Scraper Controller
(2) Snap Action SPDT 3.4" Limit Switch
(2) Limit Switch Mounting Bracket
(8) 3/8"-16 x 3" Stainless Steel Anchor Wedge
• Single Phase
• 50/60 Hz
The Automatic Control System controls the motor power and direction of rotation in order to operate the pit scraper blade through one complete cycle defined as moving the scraper blade from one wall to the opposite wall and back. A 24 HR programmable timer is used to start the cycle. Limit switches are used to provide feedback to the system when the travel limits have been reached. A delay start relay is used to delay the motor operation by approximately 2 seconds to ensure the direction of the motor has been established before energizing the motor. A delay timer relay is used to provide a maximum run time for each operation in the case of a malfunction.
To operate scraper in manual mode, rotate MAN/AUTO switch to “MAN” position. The scraper will move in the direction selected by the “FWD/REV” switch. The scraper will continue as long as the switch is in the MAN mode, direction is selected, and the scraper blade has not contacted the limit switch in which it was traveling toward. To change direction of scraper blade, simply change direction selection on “FWD/REV” switch. If motor does not operate on initial selection of “MAN” mode and direction selected, then it is likely the scraper is already activating the limit switch for that direction of operation. Changing direction to opposite setting will start motor.
In Automatic mode, the scraper motor will operate based on the 24HR timer. Output of the 24HR timer (See SET-UP) is used to signal the start of a scraper cycle. Once triggered with “ON” event, the scraper will travel to the opposite end of the barn. The scraper will stop movement once it has contacted the limit switch or The “MAX RUN” timer has timed out. Once the scraper has stopped, it will remain stopped until the next “OFF” event has been activated which will reverse motor rotation and bring the scraper back to the starting or “HOME” position.
Hog Slat® Pit Scraper Controller Installation & Operation Manual