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FSRST Shaft Rotation Sensors

FSRST Shaft Rotation Sensors

FSRST Shaft Rotation Sensors

Product catalog summary
Overview: The Tempatron FSRST Shaft Rotation Sensor is designed to ensure safety by preventing access to rotating machinery until it has decelerated to a safe speed. It activates an output relay if no pulse is detected within a set time, allowing machine guards to be disabled safely.
Specifications:
  • Time Delay: Adjustable from 1 to 30 seconds.
  • Power Supply: Operates on 110Vac or 230Vac with a tolerance of ±15%.
  • Burden: Less than 4VA.
  • Frequency: 50/60Hz.
  • Input Sensor: Accepts voltage-free contact or a 3-wire active sensor with power consumption under 5mA at 24Vdc.
  • Sensing Speed: Calculated using the formula Smin = 60/nT rpm.
  • Minimum Pulse Width: 3ms for a 50% duty cycle.
  • Relay Output: Single pole changeover contact rated at 5A for 240Vac/30Vdc (resistive).
  • Electrical Contact Life: 100,000 operations at 5A.
  • Operating Temperature: -10ºC to 50ºC.
  • Enclosure: IP40 rated.
  • Weight: Approximately 200g.
  • Compliance: CE marked, meeting EN61010-1 low voltage and EN50081-1/50082-1 EMC directives.
Features:
  • Prevents access to rotating machinery.
  • Compatible with NPN sensors or voltage-free inputs.
  • Standard DIN48 square size for easy mounting.
  • Available with matching timers and temperature controllers.
Installation and Connections: The sensor can be panel or DIN rail mounted. It includes a plug-in socket for easy installation. A switch input can be used as an alternative to the NPN sensor, requiring a 4.7k ohm resistor between specific terminals.
Ordering Information: The model code includes options for time range, potentiometer type, auxiliary power, and plug-in bases. Example: FSRST30SLP-110/230VAC.
Contact Information: Tempatron is a division of Eltime Ltd., located in Maldon, Essex, UK. For inquiries, contact via email at [email protected] or visit www.tempatron.co.uk.
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Catalog excerpts

FSRST Shaft Rotation Sensors-1

FSRST Shaft Rotation Sensors Models Available FSRST Shaft Rotation Sensor The Tempatron FSRST shaft rotation sensor is designed to prevent Product Features Prevents access to rotating machinery NPN sensor or voltage free input Supply voltage 110Vac or 230Vac 1 to 30 second adjustable time delay Standard DIN48 square size Plug-in socket or panel mounting Matching timers available Matching temp. controllers available Plug-in sockets also available sensor does not receive a pulse within the adjustable time setting, the access to a rotating machine until it has slowed to a safe speed. If the output relay will energise which can then disable a machine guard to enable safe access by the machine operator. The shaft rotation sensor is housed in a compact DIN48 square enclosure which can either panel mount or surface/DIN rail mount to a socket and is auxiliary powered from either 110Vac or 230Vac. The 5 Amp rated single pole changeover relay output contact is isolated from the supply voltage, and use of the normally open contacts enables failsafe operation in the event of power failure. The FSRST has two LEDs to indicate both power and relay status. For prevention of access to rotating machinery or equipment Dimensions Switch Input Brown Blue Panel cutout 45mm square (-0.0/+0.5) Note: A switch input (relay contact, reed switch or open collector transistor etc.) may be used across terminals 5 and 7 as an alternative input to the unit instead of the NPN proximity sensor. When using a switch input, a resistor (approximate value 4.7k ohm) must be connected between terminals 6 and 7.

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FSRST Shaft Rotation Sensors-2

Tempatron Email: [email protected] Web: www.tempatron.co.uk Continued... Ordering information Model Code Description FSRST Shaft Rotation Sensor Time Range Code Potentiometer Code Local Potentiometer Auxiliary Power Code Description Specification Time Delay: Power Supply Voltage: Plug-in Bases Code Description C1004 Panel Fixing Clamps CDSR11 11 Pin Rear Screw Panel Socket AZ611 11 Pin DIN Rail/Panel Mount Socket S11P 11 Pin DIN Rail/Panel Mount Socket input Sensor: " Voltage free contact (no bounce) " 3 wire active sensor with power consumption <25mA at 24Vdc Sensing Speed: where n = No....

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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