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The Model IFMR accepts a frequency input, and controls a single relay (SPDT) based on the value of the input frequency.

The Trip frequency can be set to any value from 0.1 Hz to 25 KHz. The IFMR can be set to trip on overspeed, or underspeed (including zero speed).

Red Lion IFMR DIN Rail Mounted Speed Switches Distributors

IFMR DIN-Rail Speed Switch

Offset and hysteresis values can be incorporated into the trip setting to eliminate output chatter. LED indicators for both the Input signal and the Relay status are provided. Two separate input connections for external push-buttons are also provided. One external input overrides the trip detection function, and holds the relay in the release state as long as the input is pulled to common. The other external input clears a latched trip condition when pulled to common.

The IFMR utilizes a seven position DIP switch, a rotary switch, a pushbutton and two indication LEDs to accomplish input circuit configuration, operational parameter set-up, input signal, and relay status indication. The input circuitry is DIP switch selectable for a variety of sources.

If you are looking for Red Lion IFMR Switches, please call us on (844) 331-9379 or email us at info@clrwtr.com we will do our best to help you find the Red Lion IFMR0036 switch that you are looking for at the most competitive prices possible. If you are searching for Red Lion Controls IFMR0066 switches technical information (data-sheets) please use the datasheets or product selection guide page links.

The indication LEDs are used during normal operation to display the input signal and relay status of the IFMR. These LEDs are also used to provide visual feedback to the user of the current parameter settings during parameter set-up.

  • Simple on-line trip frequency setting (using actual input signal or frequency generator)
  • User settable trip frequency from 0.1 hz to 25 khz
  • Over-speed, under-speed, and zero-speed detection
  • Relay latching, alarm override, and alarm reset functions
  • Programmable input circuit accepts outputs from a variety of sensors
  • Hysteresis and offset functions available
  • 85 to 250 vac and 9 to 32 vdc versions available
  • Input and relay status indication led's

The IFMR operates in one of six output modes, as selected by the user. The programmable Minimum Response Time provides optimum response vs. input filtering for any input frequency. The offset and hysteresis settings provide flexible adjustment of the relay trip and release points.

The unit is equipped with a universal mounting foot for attachment to standard DIN style mounting rails, including top hat profile rail according to EN 50 022 - 35 x 7.5 and 35 x 15, and G profile rail according to EN 50 035 - G32.

The Model IFMR continuously monitors the input signal and controls an output relay based on the frequency of the input signal, the chosen Operation Mode (Underspeed or Overspeed), and the Trip and Release points the user has selected. The green Input LED blinks at the rate of the input frequency. At about 100 Hz, the Input LED will appear to be solid on. At very low frequencies, the Input LED blinks slowly and may also appear to be solid on. A loss of signal may also cause the Input LED to remain on, depending on the DIP switch setup. In this case, the red Relay LED also turns on. The IFMR indicates the status of the relay with the Relay LED (Red). Whenever the relay is in the Trip state, the IFMR turns ON the Relay LED. In the Release state, the Relay LED is OFF.

For Overspeed detection, when the input frequency (averaged over the Minimum Response Time) exceeds the Trip point, the IFMR trips the relay. With the relay in the Trip condition, the input frequency must fall below the Release point for the relay to release.

Ordering Information

Description Part Number
Speed Switch 9 to 32 VDC IFMR0036
Speed Switch 85 to 250 VAC IFMR0066

For Underspeed detection, the relay trips when the input frequency (averaged over the Minimum Response Time) falls below the Trip point. The relay releases only after the input frequency has exceeded the Release point. Two of the Underspeed operating modes allow the machine or system that supplies the input signal to reach normal operating speed before the IFMR responds to an Underspeed condition. For Zero Speed applications, bear in mind that Zero Speed detection and Underspeed detection are identical.

Our industrial automation supplies distributors warehouse in Boise, Idaho stocks some Redlion Controls products enabling us to further assist you in finding the correct IFMR speed switch for your application in the USA. Whether we have IFMR0036 switches in stock in Boise, Idaho or need to ship direct from Red Lion Controls to any USA cities; Clearwater Tech can get IFMR DIN Rail mounted speed switch to you fast and save some money! It will be very helpful if you have the IFMR0066 switch part numbers ready, then our sales representatives can provide you with a pricing and availability quote for IFMR modules that you are looking for in seconds. If you do not have the part numbers for IFMR speed switch, our application engineers will be able to help you figure out the part numbers and get the price quote to you as soon as possible.

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