Telesis BenchMark 200, BenchMark BM470 User Manual

BenchMark

200/BM470 Marking System

BenchMark200/BM470 Marking S ystem – General Arrangement

SYSTEM OVERVIEW

The Telesis

BenchMark®200 marking system permanently prints messages into a variety of materials such as steel, aluminum, and plastic. An electric solenoid accelerates a hardened pin to indent dot matrix characters into the item being marked. Character shape, size, density, and location are determined by the user through the marking system software.

The BenchMark200 Marking Head is an electromechanical marker. A thermo-formed cover houses the internal, mechanical components that position the pin cartridge and fire the marking pin. A spring returns the pin to its idle position within the cartridge. The marking head moves the pin cartridge through Xand Y-axis motions to reach the correct position for each dot of the characters to be marked. The s ystem software automatically controls pin extension to mark the message.

The marker uses two stepper-motor drives to rapidly and accurately position the pin at coordinate-defined locations in the marking window within 0.032 mm (0.00125 in.). The marker accommodates the rigorous dynamics of impacting, rebounding, and rapid positioning of the marking pin through a system of rigid rails and ball bearing saddles, timing belts, and direct-drive, toothed pulleys.

The pin design permits high quality, consistent marks on irregular, slightly curved surfaces. It also accommodates applications where marking surfaces cannot be positioned at a consistent distance from the marker.

The Marker Cable connects the marker to the BM470 Controller. The cable is 4 m (13 ft.) long and is pre-wired to the marking head.

The Pin Cartridge, machined from engineered plastic materials, offers long life with little maintenance. Screws attach the pin cartridge to the marking head for easy removal, cleaning, and pin replacement.

The 25XLE-series Marking Pins are made of tungsten carbide and are available in 30° and 45° cone angles.

BM470 Controller contains an integrated keyboard with an LCD display. It provides a text-only operator interface and allows full operational control of the marking head. The back panel provides an electrical interface for connecting optional, remote I/O sources. Refer to BM470 Controller Specifications for details.

The Tool Stand holds the marking head and provides a base for securing parts to be marked. It uses a screw jack with an adjustment wheel to position the marker above the marking surface. Adjustment locks secure it in place. The generous vertical adjustment accommodates parts up to 298.4 mm (11.75 in.) high. The tool stand base contains slots to accommodate part fixtures. The tool stand comes with two 8mm T-nuts to aid in securing the parts for marking..

BenchMark®200/BM470 Marking System

SYSTEM OPTIONS

• Tool Stand Assembly

• Marking Head Extension Cables

• Auxiliary Axis Driver Board Kit

• Motorized Theta-axis with Programmable Rotary Drive Unit

• BM470 Controller Wall-mounting Bracket Kit

• Bar Code Scanner or Bar Code Wand with Cable

• Foot Switch (Start Print) or Pushbutton Station (Start/Abort)

• Backup Utility Software

• Upgrade Utility Software

• Logo/Font Generator Software

• BM470+ Enhanced Communications Software

SYSTEM SETUP

1. Position tool stand assembly in desired location.

2. Mount marking head to the tool stand assembly using four

M8-1.25 socket head cap screws. Screws must extend int o

the back plate at least 9mm (0.375 in.) but not more than 12mm (0.5 in.). Refer to the Benchmark200 Marking

Head Dimensions drawing (above) for details.

CAUTION

The BM470 Controlle r is not a sealed unit. Protect it from potentially damaging conditions and contaminants. Do not block vents in bottom of case. Ensure the marking system is electrically isolated from any devices that may generate extreme electromagnetic interference (EMI).

3. Locate controller as close as practical to marking head. Standard marker cable length is 4 m (13 ft.).

4. Ensure controller power switch (on back panel) is OFF; connect power cable to controller.

5. Connect marker cable from marking head to controller; tighten securely.

6. Position controller power switch to ON (on back panel) to start the marking system software.

7. Adjust pin stroke for proper pin impact depth.

BENCHMARK200 MARKING HEAD Specifications

The BenchMark200 marking head specifications are subject to change without prior notice.

Dimensions ....................... see BenchMark200 Marking Head

Dimensions drawing for details.

Weight .............................. 5.63 Kg (12.375 lb.) marker & cable

5.08 Kg (11.185 lb.) marker only

Noise ................................. 70.9 dB (max); 61.8 dB (LEQ)

See Marking Noise for details

Operating Temperature. ... 0° to 50° C (32° to 122° F),

non-condensing

Marking Area .................... 100 x 100 mm (4.0 x 4.0 in.)

Pin Types .......................... 25XLE-series

Pin Material ....................... Tungsten Carbide

Marking Characteristics

The BenchMark200 can accommodate character sizes from .762 to 100 mm (.030 to 4.0 in.) in .025 mm (.001 in.) increments. Characters can be rotated in 1° increments with printing resolutions from 5 dots/cm (10 dots/in.) to 75 dots/cm (200 dots/in.) for an engraved look.

Marking Speeds

Generally, the system will mark three characters per second using 5x7 font, 3 mm (.118 in.) high, 2mm (.080 in.) wide characters. Speeds will vary slightly depending on the selected character size, style, and dot density. Specific times can be verified by a Telesis representative.

Marking Depth

The BenchMark200 can obtain a marking depth of .127 mm (.005 in.) in mild steel (Rb53) using a 25XLE carbide pin with a 45° cone angle. The depth of mark can be adjusted over a significant range by changing the impact force (via software parameter) or by changing the impact distance (pin stroke). Specific depths can be verified by a Telesis representative.

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BenchMark®200/BM470 Marking System

BenchMark200 Marking Head Dimensions

BENCHMARK200 MARKING HEAD (continued) Marking Noise

Sound pressure-level tests were conducted on the BenchMark200 Marking System using a Larson-Davis Model 710 sound pressure meter while dry firing the marker at a 50% duty cycle. The maximum sound pressure level during the test cycle was measured at 70.9 dB. The time-weighted average (LEQ) using the 3 db rule without threshold was 61.8 dB. Typical applications average a 20% to 30% duty cycle where the time-weighted average would not exceed 70 dB(A).

The sound pressure-level tests were carried out under controlled conditions, imitating as closely as possible, predicted normal operation. However, noise level is heavily dependent on the part being impacted. Conditions such as the material being marked, the rigidity of the work piece, machine settings, ambient noise, etc., may all vary when in operational use. Such variables will alter the actual noise level.

Despite detailed guidance provided with each machine, variable operating conditions are beyond the control of Telesis. The responsibility of establishing safe working levels of use remains with the end user. Accordingly, you should conduct your own sound pressure-level tests for your application while marking actual work pieces.

Pin Life

Pin life depends largely on the type of material being marked, how hard or abrasive it is, and the required marking depth. On typical metals with a hardness of Rockwell Rb47, marking at a depth of .127 mm (.005 in.), carbide pins average approximately 9 million impressions before needing sharpened.

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