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Rotech Rotary Shaft Encoder - Polypropylene

The 4B heavy duty polypropylene Rotech rotary shaft encoder is used primarily for protecting equipment and personnel from dangerous underspeed/belt slip conditions in extreme environments. Other applications include accurate speed control, direction of rotation detection, gate position indication and counting the number of revolutions of the shaft.

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	Rotech Encoder Technical Specifications:		Literature:
	• Enclosure - Polypropylene with 30% Glass Fiber		• Product Datasheet
	• Maximum Operating Speed - 1,000 RPM (5,000 RPM High Speed Version)		• Full Line Product Catalog
	• Thread Size - 1/2 in. UNC (12 mm)		(See Downloads for more literature)
	• Operating Temperature - +212° F (+100° C) to -13°F (-25° C)
	• Weight - 3 lbs.		Technical:
	• Protection - IP66		• Product Installation
			• Rotech Selection Guide
	Output Types & Supply Voltages
	• VN - NAMUR 8.2 VDC (1 to 60 Pulses Per Rev.)		Product Dimensions:
	• VA - NPN 10 to 30 VDC (1 to 60 Pulses Per Rev.)		• .dwg (AutoCAD) .pdf
	• VB - PNP Output 10 to 30 VDC (1 to 60 Pulses Per Rev.)
	• VC - PNP / NPN 10 to 30 VDC (1 to 1,000 Pulses Per Rev.)
	• VD - NPN / PNP 10 - 30 VDC (1 to 60 Pulses Per Rev.)
	• VE - TRIAC 20 to 240 VAC / VDC (1 to 20 Pulses Per Rev.)
	• VA Q - Quadrature 10 - 30 VDC (1 to 40 Pulses Per Rev.)
	• VB Q - Quadrature 10 - 30 VDC (1 to 40 Pulses Per Rev.)
	• VC Q - Quadrature 10 to 30 VDC (1 to 1,000 Pulses Per Rev.)
	-- See Rotech Selection Guide for More Detail on Output Types

	Approvals:
	• CSA / NRTL Class II Div. 1 (U.S. & Canada)
	• Intrinsically Safe Version Available





	Part Numbers and Accessories:
	• RSEP ~ Rotech Encoder - Polypropylene
	• MAG2000 ~ Mag-Con™ Magnetic Connector
	• SR2V1-1 ~ Speed Relay
	• TACH3V5 ~ Tachometer


	Literature:		Product Dimensions:
	• Product Datasheet		• .dwg (AutoCAD) .pdf
	• Full Line Product Catalog

	Technical:
	• Product Installation
	• Rotech Selection Guide

	Note: Product manuals for older part numbers can be
	found under the Technical Support area.


			Mag-Con™ Magnetic Connector The Mag-Con (MAG2000) is an optional magnetic connector that screws onto the Whirligig and magnetically couples it to the shaft being monitored. The Mag-Con is made from stainless steel, has a holding force of over 150 lbs. and can withstand speeds up to 300 RPM.









			Tacho Display The Tacho is a low cost electronic display which can be user programmed to indicate speed, distance or time intervals. See Tacho









			Speed Relay The DIN rail mounted speed relay can be used with any Rotech encoder, and with 4B’s WDA or P800 proximity sensors. A user adjustable underspeed relay contact output can sound an alarm or shutdown machinery when the shaft speed falls below the preset level. See Speed Relay


	The shaft is turning, but there is no signal coming from the sensor. What is the problem?
	The bolt connecting the encoder to the shaft is not tight. Remove the back plate and tighten down the connecting bolt
	with a hex key (Allen wrench). Note: the hex key will be under a plastic cap, be sure to replace this cap before
	reassembling the back plate on the encoder.