GSE 350IS / GSE 355IS Service Manual - Advanced Weigh ...

Pre-act values are entered in terms of the amount of product that would over-fill or howearly to close the control device. For instance, after repeated tests, a systemconsistently over-fills by .5 lbs. This is the value that should be entered as the pre-act.The Model 350/355 I.S. would then deactivate the setpoint .5 lbs. less than the desiredfinal target value.ParameterSettingActual Cutoff ValueCommentsTarget = 400 lbs.Desired final weight.Pre-Act 1 = 28 400 - 28 = 372 Switch to slow feed at 372 lbs.Pre-Act 2 = .5 400 - 0.5 = 399.5 Final fill valve closes at 399.5 lbs.4.16.3 Learn FeatureThe Model 350/355 I.S. can learn optimal pre-act values. When enabled, the learnfeature will automatically adjust the final cutoff value based on an analysis of the fiveprevious fills, helping achieve a final target by compensating for product viscosity,changes in plant air pressures, sticky valves, etc. For each cycle, the prior five finalweights are analyzed and a new pre-act value is calculated.4.16.4 Pause FeatureThe Model 350/355 I.S. can pause setpoint operations. This is useful to provide apause for mid-cycle operator breaks, mechanical adjustments, etc.Pause Setting Action ResultDisabledPause feature disabled.Keypad Model 350/355 I.S. Key Press Current cycle paused - allsetpoints deactivated.Remote Key Remote Key Contact Closure Current cycle paused - allsetpoints deactivated.Both Model 350/355 I.S. Key Press orRemote Key Contact ClosureCurrent cycle paused - allsetpoints deactivated.Pause Setpoints on the Model 350 I.S.When invoked, Pause deactivates all setpoints. The display will show Tare= ~ Abort.Pressing [TARE] will abort the current cycle; any other keypress will resume the cycle.The Pause feature has four settingsPause Setpoints on the Model 355 I.S.When invoked, Pause deactivates all setpoints. Pressing the [TARE] key will pause thesetpoints. The display will show Abort ?Pause ~ Stop = Abort. Pressing the [STOP] keyagain will abort the setpoints. Pressing the [START] key will resume all setpoints. In theindependent setpoint mode, the setpoints will remain deactive until the [START] key ispressed.Model 350 I.S. and Model 355 I.S. Service Manual 79