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YCU-H Type Controller

Brief functional introduction of YCU-H type controller:

  • Over voltage:indicate the main power or the standby power has the over voltage fault
  • Under voltage: indicate the main power or the standby power has the under voltage fault
  • Phase failure: indicate the main power or the standby power has the phase failure fault
  • Self-input and self-recover: malfunction with the main power supply, will change to standby power,automatic back to main power after automatically
  • Self-input and without self-recover: malfunction with the main power supply, will change to standby power, will not back to main power after automatically
  • Automatic: switch will work at the state of automatic
  • Manual: Switch can work when manual transfer
  • Double points: switch work at the state of middle
  • NA,NB,NC: indicate the value of all the 6 line
  • Main power closed-transition: main power supply
  • Standby power closed-transition: standby power supply
  • Main power priority: means at the state of Self-input and self-recover, main power supply priority
  • Generator: display it means the Working mode of the switch will be utility-generator
  • Generator: do not display it means the Working mode of the switch will be utility-utility
  • Stop: flashing means the generator has been stopped
  • Stop: No flashing means the generator will stop delayed
  • Start: No flashing means the generator has been started
  • Start: flashing means the generator will start delayed
  • Setting: means enter setup mode

YCU-H type controller connection terminals diagram:

YCU-H-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).