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Products  /  Series  /  MATRIX-S  /  2H34-S
Products  /  Series  /  μMATRIX  /  2H34-S

2H34-S

  • uMATRIX PLATFORM
  • Large STN graphics LCD
  • System status LED indicators
  • Simple menu setting procedure
  • 40-300V DC aux. supply
  • 40-275V AC aux. supply
  • 20-70V DC aux. Optional
  • Self diagnosis & fail alarm
  • Size 4 case
  • Made in Australia




The 2H34-S Series relay is a frequency monitoring relay with four stages of adjustable frequency pick up & drop out points. Each frequency set point can be set for under or over frequency operation & has an independent time delay driving an output relay. An undervoltage lockout is used to disable the four frequency outputs when the voltage falls below a preset level. Each of the four setting stages has a rate of change of frequency (ROCOF) element with an independent time delay.

The dF/dt element is available to operate as an AND or an OR  logic function with the frequency element driving a common output contact per stage. A separate Under Voltage & Over Voltage stage are provided for alarm functions.

The 2H34-S relay is built on the Micro MATRIX-S digital platform. The standard Micro MATRIX human machine interface (HMI) is combined with fully solid state frequency sensing & measuring circuitry to provide high accuracy, simple set up & flexible operation. Self-monitoring is carried out by hardware & software watchdogs.  A USB programming port is provided for ease of establishing relay settings using a PC.

 

Changes introduced on the 2H34-S

  • Case length reduced by 18mm to suit 4M56-S case;
  • LED backlighting to reduce EMC emissions – contrast adjustment no longer required;
  • Front panel USB programming port to increase data transfer speed and improve compatibility with notebook PC’s;
  • Network communications port is now optional to maintain low cost of base model;
  • Network communication port maintained the optically isolated RS485 serial port but the RS232 configuration option has been deleted;
  • New current and voltage channels to improve measurement stability;
  • New status input option covering 18-275V AC and 300V DC range;
  • Updated switchmode power supply to reduce EMC emissions and improve transient overload protection;
  • Surface mount production technology to allow increased component density for additional functionality now and in the future.

 

What has not changed from the 2H34

  • I/O and basic functionality has been maintained;
  • Basic menu structure and operation has been maintained;
  • Electrical terminal mapping has not changed allowing existing wiring diagrams to be maintained;
  • Compatibility with existing application software back to version 0500 maintained;
  • Compatibility with existing uMATRIXwin programming software maintained;
  • Modbus RTU network communication protocol maintained Case size 4 has been maintained although the length has been reduced.
  • Made in Australia

umatrix_setting_files

View historical relay parameter setting (.ump) files

2h034a_5602

Application “A” Software, parameters & functional Description.

2h034b_5602

Application “B” Software, parameters & functional Description.

2H34-S Technical Bulletin

2H34 User Guide