VECTRAL SARL

Vectral

METER DRIVE

Vectral METER DRIVE

LINEAR INCREMENTAL MEASURING SYSTEM

Long-distance measuring systems - Measuring and positionning up to 500 meters. Reading speed : 10 meters per second.

Vectral METER DRIVE

ROBUST- SIMPLE AND EASY TO USE

Suitable for high-speed measuring and positioning, available in conventional linear encoder format or as an electronic tape measure.

Vectral METER DRIVE

OPERATION

The opto-electronic encoder accurately counts the number of slots in the perforated stainless steel tape at speeds up to 10m/s.
*Vectral* METER DRIVE
ADVANTAGES

However, Meterdrive is not just a conventional linear encoder, and offers the user significant benefits over other linear measuring systems : the stainless steel tape can be stretched between two fixed points and does not need to be fixed accurately to a flat base. In this case, the encoder is mobile. Alternatively, the tape can be coiled as in a tape measure with the encoder stationary. This solution, the Rollzam, is particularly useful if there is only one fixed point for the tape, as is the case for fork lifts, table lifts or periodic controls in nuclear power plants. It is also possible to use the tape with a pulley and counterweight, as a belt between two pulleys, or to move the tape through the fixed encoder. This last solution can be very useful for short distances (such as pneumatic or hydraulic jacks).
*Vectral* METER DRIVE
NO DESYNCHRONISATION

The tape is guided in the encoder by 2 pairs of high-density polyethylene tape guides. Thanks to this system, the tape cannot move incorrectly, and therefore cannot lose step, as is the case with other measuring systems.
*Vectral* METER DRIVE
STURDINESS

Water and shock resistance, absence of mechanical parts and direct reading via large tape perforations ensure that the system has excellent life and wear characteristics.
*Vectral* METER DRIVE
RELIABILITY

Meterdrive is particularly useful as a replacement for conventional chain arrangements, pulleys, etc, where roller slip or wear can cause loss of positioning when using rotary encoders.

Vectral METER DRIVE

HOW DOES IT WORK

Inside the encoder are 4 light-emitting diodes opposite 4 light-receiving diodes. The tape slides through the encoder, supported by polyethylene tape guides, and the receiving diodes are alternately covered and uncovered by the perforated tape. The encoder emits two incremental 90° phase-shifted signals (A & B). A warning signal E is emitted should the tape perforations become obstructed by dirt particles or if the power supply is insufficient.
The output signal can be used with any PLC or proprietary counter. Counters and PLCs have to take all edges of signals A & B into account (multiplication by 4) and must have an external reset. In order to use the high speed operation available with Meterdrive, counters and PLCs must have a counting frequency of 5kHz per channel for Z.201 encoders (1mm resolution) and 50kHz per channel for Z.301 encoders (0,1mm resolution).

Vectral METER DRIVE

TECHNICAL CARACTERISTICS

Infrared optical measurement
Polycarbonate case injected with fibers, completely sealed, light, compact, robust and without moving parts, unaffected by shocks and vibrations.
Reading speed 10 m/second
Protection IP 67
Version connector, Weight : 90g. Version cable : 350g .
Power supply 10-30V DC

Power consumption 80mA max
Incremental output signals A, B and error signal E.
Working temperature : -20 to +60°C
Storage temperature: -40 to +85°C
Protection against static electricity : 1000V, 100pF, 100 ohms
• Protected against polarity inversions, short-circuit of output signals against each other, 0V, +V

Asymetric signal encoders
A-B-E – connector connection

Symetric signal encoders
A-A’-B-B’-E-E’ – 2m cable connection


Z.201A-0 1mm Resolution	Z.301A-0 0,1mm Resolution


Z.201-S 1mm Resolution	Z.301-S 0,1mm Resolution

Output circuit: Push-pull asymetric against 0V
Output tension: 10-30V proportional to power supply
Connection: airtight 5-pin connector for shielded 5-conductor cable (exterior cable Ø 5mm).

Output signals: RS422 driver
Output level 0 : 0,5V max
Ouptut level 1 : 2,5 V mini
Max. load: 10mA per channel
Connection: 2m PVC cable : 8 wires, 4 shieldings, exterior Ø 9mm.

Wiring ; view soldered side

Plan of the connection

Vectral can also supply 2m, 5m or 10m cables with fitted male or female plugs for direct connection to our counters.

Vectral METER DRIVE

TAPE Z.200-Z.300

The stainless steel tape is very flexible. making detailed adjustments unnecessary and thus facilitating use of the system (reduced time for engineering departments, installation,….). Thanks to the large size of its perforations (2mm), it is immune to almost all industrial environments.

The tape is usually stretched between two points. Up to 15m, no mid support is required. Over this length, a support should be positionned every 3-4 meters, or the tape should rest on a profile support for its entire length. When the encoder moves, it raises the tape approximately 20mm as it passes (1/2 the depth of the encoder with some leaway). When used with production machines, we suggest covering the tape with a U -profile to protect it from projections and chips.

Tape for Linear encoder Meterdrive

Two types of tape are available

The Z.200 tape is intended for our Z.201 encoders, 1mm resolution. It is manufactured with an accuracy of ±0,1mm/meter.
The Z.300 tape is manufactured with an accuracy of ±0,03mm/m. It is the ideal choice for use with our Z.301 encoders if garanteed measures are necessary (ie. metrology).

All of our tapes are manufactured to attain their maximum precision with a tension of 50 Newtons, which can be easily applied with our Z.215 tension system.

For applications not requiring metrology but simply needing a positionning repeatability of 1/10thmm, it is possible to use our more economical Z.200 tape with the Z.301 encoders.

Technical characteristics
Tensile strength Elasticity limit Expansion coefficient Stress deformation Weight Thickness Maximum length Precision : Z.200 Z.300 Minimum bending radius Length minimum for the fixation	2000 Newtons 1000 Newtons 16 µ/m/°C 3,2 µ/m/N 18 g/m 0,2mm 500m. ± 0,1 mm/m à 50N et 22°C ± 0,03 mm/m à 50N et 22°C 5 cm 8 cm

Two systems exist to attach the tape ends

An economic system Z.202 including the 2 pairs of stainless steel plates and the spring Z.203.	A rapid mounting system, Z.215, enables tension adjustment with a compression spring for optimal precision. It can can be bolted to a support in any direction (x, y or z) with just 4 screws.

Vectral METER DRIVE

ROLLZAM

The Rollzam comprises the flexible tape coiled inside a housing and a spring to automatically rewind the tape. The detector head is thus static, protected against the environment, and gives the following benefits : easy mounting, fixed cabling, no tape support required. Standard length : 8 or 15m. The Rollzam base unit can be fitted with any of our (either the Z.201 or Z.301) encoders.

Ideal for : telescopic systems, measuring heights or levels……

Photo of Rollzam

Rollzam 213/8 : 8 meters long

Rollzam 223/15 : 15 meters long

Rollzam 213/8

Vectral COUNTERS

	Z.211A 6-digit programmable LED (14mm : easily visible from a distance) counter with 1 relay, intended for façade mounting. Scale factor, choice of decimal location, relay for one preselection, counting frequency 4kHz. 230V power supply, 12V output available to power the encoder. For quick, easy programming.
	Z.211A-ENC Z .211-A counter in a metal housing complete with fuse, switch, … ready to plug into 220V and to our Z.201A-0 & Z.301A-0 encoders (via a connection cord with connectors).
	Z.211E Universal counter made up of a base model to which additional functions can be added via optional plug-in cards : analog output, PC connection, internet, 2- or 4-level preselection relays. Intended for façade mounting, this 6-digit counter is ideal for evolving applications. Its large LED (14mm) can be seen from a distance. Scale factor, choice of decimal location, it can show up to 3 values (counters A, B and C), counting frequency 8kHz. 80 to 230V AC power supply, 12V DC output available to power our encoders.
	Z.211E-ENC Z .211-E counter in a metal housing complete with fuse, switch, … ready to plug into 220V and to our Z.201A-0 & Z.301A-0 encoders (via a connection cord with connectors).
	Z.210B Compact, economic 8-digit counter LCD counter intended for façade mounting. 9 to 28V DC power supply, scale factor. Size : 68(w) x 33(h) x 38,3mm (depth).

Vectral ADDITIONAL REFERENCES

	Z.214 + Z.204 Connector for Z.201A-0 & Z.301A-0 encoders Shielded cable : 5-strand, for Z.214 connector
	Z.EXTA-2 / Z.EXTA-5 / Z.EXTA-10 Connection cord 2m, 5m or 10m soldered on a Z.214 connector on one end, free strands on the other end.
	Z.EXTAC-2 / Z.EXTAC-5 / Z.EXTAC-10 Connection cord 2m, 5m or 10m soldered on a Z.214 connector (encoder) and a Z.214M connector (counter).
	Z. 208 Encoder fixation plate. Fixation plate for mounting the encoder from the front with blind holes.