Graco TI12552a, TI12553a Alarm Monitoring/Reset Discrete I/O, JobComplete Input

Models: TI12553a TI12552a

1 134
Download 134 pages 19.13 Kb
Page 82
Image 82

System Operation

Alarm Monitoring/Reset (Discrete I/O)

Anytime an alarm occurs, the Alarm Reset input will reset the alarms and allow for processing of the next step by automation, except for the following condi- tions:

Potlife Alarms cannot be reset by the Alarm Reset

input or through the EasyKey Alarm Reset

key. Only a Purge/Color Change or spraying the Potlife volume will reset a Potlife alarm. (See Alarm_Potlife output information on page 54.)

When Flow Control is turned on (see Configure Screen 5 on page 34), the Flow_Rate_Alarm output will be High when the instantaneous flow rate is above or below the Flow Rate tolerance setting. (High Flow or Low Flow will be the condition, indi- cating in the status bar of the EasyKey.) This output will be High along with the Mix_Active output. The PLC should monitor the amount of time this condi- tion exists and take action at a predetermined time. With Flow Control there will be times (for example during flow rate changes) where the general alarm as described here will be High (typically momen- tarily). The PLC must read this Alarm output (i.e. general alarm), see if Mix_Active is still High, and if so, start a timer. A typical example would be to ensure all parts are sprayed within a specific flow rate range. A maximum predetermined time would be set to allow a Low or High flow condition to exist continuously.

Shutdown or go to Standby after the flow rate alarm time expires.

Job_Complete Input

Every time a momentary Job_Complete input is seen by the ProMix 2KS, a job log will be recorded, logging the A and B meter volumes (cc) with a time and date stamp.

The volumes will then be reset to 0. (Volume totals are accumulated since the last reset.)

NOTE: A Color Change accomplishes the same Job Complete Reset functions. The Job_Complete input is commonly used to record material usage for a specific set of parts. These volumes are sprayed material vol- umes.

For Applications with Dump Valves (for quick purges/color changes at or near the gun):

ProMix 2KS has four specials that can each be turned off and on twice throughout a color change sequence. See Advanced Setup Screen 8 on page 42 or Recipe Setup Screen 7 on page 46.

For example, a dump valve at a gun on a robot could be opened at the appropriate times to facilitate fast color changes. Another output could be used to automatically drive an air-operated fluid regulator High during the Purge or Color Change process.

NOTE: With integrated Flow Control, the flow control regulator automatically is driven High. See Advanced Setup Screen 5 on page 41 for specifics on setting up these values. Each of the specials can be monitored, but can only be controlled through the times entered within the setup screens of the EasyKey or by managing the proper registers on the network.

The following ProMix 2KS inputs should never be on (High) at the same time:

Mix_Start

Purge_Start

Color_Change_Start

The Recipe Bits (0-6) are always on at the same time. The only time these bits are recognized is when the Color_Change_Start input is High. The Recipe Bits should be loaded and stay loaded for the current rec- ipe. Do not change the Recipe Bits until a color change is required again. Inconsistent results are possible if this is not followed.

82

312779E

Page 82
Image 82
Graco TI12552a, TI12553a important safety instructions Alarm Monitoring/Reset Discrete I/O, JobComplete Input

TI12553a, TI12552a specifications

The Graco TI12552A and TI12553A are highly regarded models in the realm of airless paint sprayers, designed to cater to both professional contractors and DIY enthusiasts. These sprayers are engineered for efficiency and versatility, making them ideal for a variety of painting tasks, including interior and exterior applications.

One of the standout features of the Graco TI12552A and TI12553A is their powerful motor, which delivers consistent pressure for a flawless finish. The motor is backed by a robust design, ensuring durability even during extensive use. This enables users to spray unthinned coatings, making the models suitable for a range of materials, including latex, stains, and sealers.

Both models boast Graco's innovative ProConnect technology, allowing for quick and easy pump replacements. This feature significantly reduces downtime and enhances productivity, as users can replace the pump on-site without needing specialized tools. The Graco TI12552A and TI12553A also feature a lightweight and portable design, making them easy to transport around job sites.

The ergonomics of these sprayers are commendable, with comfortable grips and well-placed controls, allowing for extended use without discomfort. Additionally, the integrated storage compartments enable users to keep accessories like sprayer tips and hoses organized and easily accessible.

Another significant characteristic of the TI12552A and TI12553A is their adjustable pressure control. This allows users to tailor the paint flow to suit specific projects, providing greater control over the application and ensuring optimal results. The models also feature a reversible spray tip, which is a convenient addition that allows for easy unclogging, minimizing interruptions during work.

For safety and maintenance, both models come equipped with a built-in suction filter that prevents debris from entering the system and damaging the pump. Regular maintenance is simplified by the easy-access fluid intake, which allows for straightforward cleaning.

In summary, the Graco TI12552A and TI12553A are advanced airless paint sprayers that combine power, convenience, and versatility. With their user-friendly features, ergonomic design, and innovative technologies, these sprayers are essential tools for anyone looking to achieve professional-quality finishes with ease. Whether it’s a residential project or larger-scale commercial job, the TI12552A and TI12553A stand out as reliable choices in the competitive landscape of paint sprayers.