Faria Nascimento Import Export

Ontario, Canada

The company is a highly acclaimed Exporter and Supplier of Microcontroller Tachogenerators in Canada. The Microcontroller Tachogenerator, offered by the company, is a modular - encoder and converter. The electronic Microcontroller Tachogenerators have been developed for use in process control and measurement of motor speed, in order to eliminate the shortcomings of electromagnetic tacogeradores as loss of linearity, the output ripple due to arcing in brushes and periodic maintenance. The Microcontroller Tachogenerator is a device based on optical sensors with an encoder that replaces traditional tacogeradores with the advantages, including allowing maintenance in general character to be fully electronic, and therefore its life prolonged. The encoder generates two square wave signals 90^o out of phase with each other and whose frequency is proportional to spindle speed and the number of pulse their optical disc. These square wave signals are transmitted to the electronic circuit, "inverter/voltage microcontroller", which converts the signals in a frequency proportional voltage output. The pulses are measured by digital tachometer scale with internal programmed by software, with indicated RPM, MPM or others. The Microcontroller Tachogenerator is installed directly on the shaft of the machine and can be supplied with the same voltage specifications, fastening, sealing and robustness of the original tachogenerator. Key Features Of Microcontroller Tachogenerators

• Conversion Linearity better than 0.05% of span
• Output signal adjustable up to 10V and 0/4 to 20 mA or up to 100 V amplifier using high voltage (Optional)
• The output of the frequency converter/voltage is symmetrical (with reverse polarity reversal to the direction of rotation of the pulse generator) is low ripple and can drive loads such as analog or digital indicators with scale in the appropriate unit, chart recorder, circuit control / automation, PLC etc.
• Can be supplied with RS485 output allows external communication for remote programming and transmission of measurement data
• It has a speed limit programmable key directly through the display with digital output or solid state relay

The company is a renowned Exporter and Supplier of Electromagnetic Tachogenerators in Canada. The Electromagnetic Tachogenerator is a compact machine consisting of an incremental encoder and converter for internal frequency to voltage and is used as a primary element for measuring tacomtrica and speed control of motors. The Electromagnetic Tachogenerators is studded with advantages the conventional electromagnetic tacogeradores, because it has no loss of linearity, excessive ripple in the output voltage (due to the brushes centelhamentos) and periodic maintenance. In both operations, the digital display is provided on the local display, an isolated analog output current (proportional to the measurement) and a digital solid state or relay contact (referring to a programmable limit switch). The Electromagnetic Tachogenerators may also be provided with the mounting dimensions of existing equipment without the need for mechanical adjustments to the machine. Electrical Features Of Electromagnetic Tachogenerators

• Operating Speed : 0 to 3000 RPM
• Direct indication in RPM, MPM and MPS
• Direction Of Rotation : Bidirectional with indication by LEDs
• Current Isolated Output : 4 to 20 mA or 0 to + 20 mA, load <700 Ohms
• Display local 7-segment LEDs, 4-digit LED and oversight of operation
• A constant multiplication and division : 1.000000 to 99999999
• Accuracy and linearity of analog output : 0.05% of span
• Resolution of analog conversion : 0.18 or 0.35 to the
• Response Time : 5 m sec
• Output Ripple : 0.5% PP scale
• Operating time and release time limit : 0.0 to 99 sec
• Holding (latching output limit) : On / Off
• Analog Output Filter : RC programmable from 0.05 to 99 Mon
• Data retention in case of failure / lack of energy
• Hysteresis release time limit : 0 to 10% of the measuring range
• Programming, analog calibration and parameterization made by panel keys, with qualification password
• A limit switch with comparison operation on the measured value, with digital output solid state (transistor NPN open collector, 60 V x 0.1 A) or changeover contact relay with a maximum capacity of 5 x 250 A ac (internally configurable)
• Power : 15/30 Vdc or 42-270 Vac / Vdc - 3 Watts
• Maximum Operating Temperature : 60 ^o C
• Electrical Connections cable, connector or terminal blocks in sealed box

Mechanical Features Of Electromagnetic Tachogenerators

• Models of attachment : the bored shaft (TGE-DI03820FU), the flange (TGE-DI03820FL) or by foot (TGE-DI3820PE)
• Housing circular aluminum base with fixing the flange or the axle itself stuck, diameter
• 100 mm body length 80 mm
• Torque (moment of departure) : 3 kgf / cm
• Maximum Speed : 3000 RPM
• Shaft : stainless steel
• Vibration : 10G (10 to 2000Hz)
• Weight : 2 kg
• Maximum force on the shaft : (axial) 2x103Kgf, (radial) 2x103Kgf
• Moment Of Inertia : 120g/cm2
• Degree Of Sealing : IP 65

Optional Attachments With Electromagnetic Tachogenerators

• Module high voltage operational amplifier output voltage up to 10V to 200V, power up to 200 W
• Elastic coupling for installation of the tachogenerator (by fixing flange or base).