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YCU-C Type Controller

Brief functional introduction of YCU-C-type controller:

  • YCU-C-type controller used to control the three segments type ATS that composed of three coins.
  • A dedicated cable used to connect the switch and the controller and makes it easy to install;
  • Detect the two-path power over-voltage, under-voltage, lack phase, ect;
  • Control the S -type ATS disconnect the two-way power at the same time, convenient to overhaul;
  • Provide generators start signal (delayed about 3S to issue when the main power fails).

YCU-C-type controller connection terminals diagram:

  • F1, F, F2 are used to start the generator, F is the public terminal, when the main power is normally closed,F2 is normal-shut terminal;when the main power became abnormal, it will delay about 3 S to close;
  • When R1, R2 are connected, the controller will be in unallowable state: (R1, R2 can only connect passive contact, or it will damage the controller);
  • L1, L2 can be added more functions according to the request of users (standby).

Unallowable state:

  • When R1, R2are connected, the controller will be in an unallowable state, and then the lights will flash at the same time.
  • 1. When connecting terminals R1, R2 means to press a manual reset button and then it will be in unallo-wable states, at this time, controllers will not respond no matter how to press main power transform button, backup power transform button or even returning to the automatic mode.
  • 2. In automatic mode, connecting terminals there is no place for R1, R2, to reset, and just be in unallowable state but not respond to external conditions.
  • 3. Cutting off the two-path power, and connecting terminals R1, R2 makes the controller in unallowable state to avoid dangers to maintainers by misusing.