Trouble Shooting Label Feed Or Label Placement

Trouble Shooting – Label feed or label placement For: Syncro Series, Series 3, Series 4 and Series 5 label applicators with CP1L PLC’s

The label must stop in the same position on the peel plate in order to have accurate label placement. To test the label stop position press the “Jog” button (F3) and watch where the labels stops at the peel tip. If the label does stop in the same place each time (at least 5 labels) your problem is not with label stop position. If the label does NOT stop in the same position you have a problem with the label sensor or set up of the controls. If this is the case, the most common problem is the location of the label sensor. The label sensor can not be placed so that when the label stops the label sensor is aligned with the die cut gap between each label. When the label stops the label sensor must be on the label material not the on the label gap. You may also have a mechanical problem with the drive assembly. For details on the drive assembly please see the Mechanical information section of this manual or the mechanical troubleshooting section of the manual. For proper set up of the labeler controls please see the Main applicator controls section of this manual.

The item that has the greatest effect on label stop position is the label sensor. The label sensor can be moved mechanically, the sensitivity adjusted, and the amount of label delay (stop position) adjusted through the applicator’s control panel. The mechanical adjustment and label delay allow the applicator to account for different label sizes and shapes. The sensitivity adjustment on the label sensor accounts for different label and backing web materials. - Electronic adjustment (sensitivity) – There are a couple different types of label sensors used. Please see the Electronics section of this manual for details on your specific label sensor. The important thing to know is that the label sensor triggers (indicator light goes on) each time the gap (1/8” die cut) is seen. The label sensor should be adjusted or trained to see the gap not the label. A simple way to test this is to turn the labeling head on and pull the label web by hand. Each time the gap between labels passes through the sensor the indicator light on the label sensor should trigger. - Mechanical adjustment (movement or location) – The label sensor is mounted on an adjustable slide that allows for minor movement. Please note mechanical movement of the sensor is not normally done by the customer. The label sensor adjustment is used at the factory during the initial manufacturing of the labeler to account for different application variables such as peel plate arm length. For best results the sensor should be placed at least 1/2” away from the label gap. If possible during initial set-up, we will attempt to place the label sensor near the middle of the label. Some label length combinations will not allow for the center of the label placement. For More details on this set up see the “set-up sheet” portion of this manual. The label sensor slide assembly is mounted on (2) ¼” OD stainless steel rods. The assembly is held in place by a 10-32 bolt located at the very bottom of the slide. Loosening this bolt will allow you to move the sensor in and out. All label sensors are marked where the sensing element is located. Slide the sensor in or out until it is lined up with the desired location on the label.