NCL Logic Modules

Logic modules NCL

The logic module provides a collection of signals "alarm" events from the modules of control, performs logical processing of data in accordance with predetermined algorithms and issues commands to the external alarm or Executive devices of protection.

Module Modifications:

NCL 2003 - logic module performs data processing from 3 redundant control modules according to the 2oo3 scheme with high reliability of the protection signal transmission function due to the duplication of the functional elements of the circuit.

NCL 3000 (NCL 7000) - a universal logic module performs data processing from control modules according to specified algorithms. It can be used to control the excess of settings according to the 1ooN scheme or to confirm the event similar or an order of magnitude lower at neighboring monitoring points, to control the creeping growth of the parameter, the parameter jump. Use of individual algorithms is possible.
The NCL 7000 is characterized by an increased number of dry contact outputs and the presence of discrete inputs for blocking relays in transient conditions during the test period, etc.

  • Specifications
      Parameter Unit Value
      Model   NCL3000 NCL7000
      Digital communication interface   Ethernet
      Measuring controllers in the network   ≤ 30
      Algorithm types   setpoint «1ооN»; «2ооN»; confirmation of the setpoint by an order of magnitude lower setpoint; growth «1ооN»; «2ооN»
      Available algorithms   ≤ 9 ≤ 21
      Discrete inputs   - 2
      Relay outputs:
      events
      fault      		  
      4
      1
      7
      1
      Allowable relay operating error % ≤1,0
      Hardware relay delay s ≤0,35
      Software relay delay s 0 – 10,0
      Time synchronization protocol (and / or)   PFC 5905 SNTPv4;
      IEEE 1588v2 PTP
      Synchronization error with precision time systems μm ≤1
      Internal clock error on loss of time source s/day ≤1
      Operation mode setup time s ≤10
      Power supply V DC
      W       		=12
      ≤4,0
      Operating temperature °С minus 20 – 80
      Probability of failure-free operation for 8000 hours or 1 year   ≥0,95
      MTBF hour 50 000
      Lifetime years 12
      Dimensions (WxHxD) mm 25х106х148 50х106х148
      Weight g 115 180