Abstract: A drive unit causes a rotating platform of a rotary milking parlor arrangement to move in a direction of rotation. The drive unit includes first and second drive motors arranged to engage a drive rail of the rotating platform and act on a respective side of the drive rail to cause the rotating platform to move. Each of the drive motors produces a respective pace signal indicating a rotational speed of the drive motor in question. A control unit receives the pace signals from each of the drive motors in each drive unit. The control unit compares the pace signal from the first drive motor with the pace signal from the second drive motor from each drive unit to establish a respective difference in the rotational speeds in the drive unit. If the difference exceeds a threshold value, the control unit triggers an alarm.

Abstract: An animal rear leg position control device includes a body having a lower side; a first lateral side; a second lateral side; a front end; a rear side, where a longitudinal direction is defined by a line extending from the front end to the rear side; a first transition area defines a first rear corner of said body; and a second transition area defines a second rear corner of said body, where the front end is configured to be turned towards a front part of a milking stable when the body is in an operative position, and the rear side is configured to be turned towards a rear part of a milking stable when said body is in the operative position in the milking stable. The first rear corner and the second rear corner are positioned at different longitudinal positions in the longitudinal direction of the body.

Abstract: A drive unit causes a rotating platform of a rotary milking parlor arrangement to move in a direction of rotation. The drive unit includes first and second drive motors arranged to engage a drive rail of the rotating platform and act on a respective side of the drive rail to cause the rotating platform to move. Each of the drive motors produces a respective pace signal indicating a rotational speed of the drive motor in question. A control unit receives the pace signals from each of the drive motors in each drive unit. The control unit compares the pace signal from the first drive motor with the pace signal from the second drive motor from each drive unit to establish a respective difference in the rotational speeds in the drive unit. If the difference exceeds a threshold value, the control unit triggers an alarm.

Abstract: An animal rear leg position control device includes a body having a lower side; a first lateral side; a second lateral side; a front end; a rear side, where a longitudinal direction is defined by a line extending from the front end to the rear side; a first transition area defines a first rear corner of said body; and a second transition area defines a second rear corner of said body, where the front end is configured to be turned towards a front part of a milking stable when the body is in an operative position, and the rear side is configured to be turned towards a rear part of a milking stable when said body is in the operative position in the milking stable. The first rear corner and the second rear corner are positioned at different longitudinal positions in the longitudinal direction of the body.