Mighty Module FR1020 DC Input, Field Rangeable Dual Limit Alarm, Latching Or Non-Latching

FR1020 DC Input, Field Rangeable Dual Limit Alarm, Latching Or Non-Latching

Description

The FR1020 monitors a DC input signal and provides two sets of SPDT, 5 A alarm relays with two independently adjustable setpoints. Each setpoint has a set of red/green LEDs to indicate alarm status. The configuration of each alarm relay is user-settable as follows:

• High or Low - High selects alarm on an increasing signal. Low selects alarm on a decreasing signal.

• Normal or Reverse - Normal position selects fail-safe operation (loss of power will result in alarm condition).  The relays are energized in the non-alarm condition.  When the setpoints are exceeded, the relays de-energize.  Selecting the reverse position reverses this logic.
  

• Deadband or Latching - Deadband selects two independently adjustable deadband controls. Deadband for each alarm is adjustable from 0.1% to 100% of the input span. The deadband is symmetrical about the setpoint. With latching selected the alarms will latch when a setpoint is exceeded, and can not be reset unless the input no longer exceeds a setpoint. Reset may be accomplished by remote contact closure or by momentary power interruption. (Several reset inputs may be tied to one reset contact, but note that all negative inputs will be tied together.) The module includes filtering and conditioning to reduce susceptibility to transients and noisy operations.

Download FR1020 Brochure

Download FR1020 Manual

Features

	Allows Inputs to ±256 V or ±100 mA
	16 mV or 0.8 mA Minimum Input Span
	Red and Green LED Alarm Status Indicators
	Adjustable Deadband
	Provides Relay Contact Closures at Preset DC Input
	Configure Alarms as HI/HI; HI/LO; LO/LO
	Alarms Normal or Reverse acting
	Configure as Latching Alarm
	Fully Labeled Jumper Positions For Easy Range and Configuration Settings
	Choice of Power Options
	Size, Pinouts, and Performance Identical to MM1020
	Permanent Warranty

Mounting

The module is designed to plug into a standard 11-pin relay socket. Part number MP011 is a molded plastic socket suitable for mounting on a flat surface or in a 2 3/4 inch wide PVC snap track (TRK48). Use CLP-1 hold-down clip if needed. A Killark HK series explosion-proof housing with dome and 11-pin socket is available (HKB-HK2D-11). DIN rail mount socket (P/N DMP011) fits 35mm rail.

Specifications