Timing relays PCU-520 24 V

Functioning
Operation mode:
*LAGGED ACTIVATION (IR)
Until the relay is activated, the contact remains in the 1-5 and 2-8 position. After the power voltage is supplied (the green “U” LED lights up), the contact is shifted to 1-6 and 2-7 position and the countdown of the preset value t is commenced (the red LED lights up). After the preset time t has been counted down, the contact returns to position 1-5 and 2-8. The working sequence of the relay may be repeated after turning the power supply off and on.
*LAGGED DEACTIVATION (IA)
Until the relay is activated, the contact remains in the 1-5 and 2-8 position. After the power voltage is supplied (the green “U” LED lights up), the contact is shifted to position 1-6 and 2-7 and the countdown of the preset value t is commenced (the red LED lights up). The working sequence of the relay may be repeated after turning the power voltage off and on.
*LAGGED ACTIVATION - CYCLIC (CR)
The LA operational mode is triggered in equal interruption/work cycles according to preset time values.
*LAGGED DEACTIVATION - CYCLIC (CA)
The LD operational mode is triggered in equal interruption/work cycles according to preset time values.


 

Attention!
*Setting the time range knob regulator in the:
  ON - position with power supply activated results in the permanent closure of the contact in position 1-6  and 2-7.
  OFF - position (power supply activated) causes the contact to be permanently closed in the 1-5 and 2-7 position.
*With the power supply on, the system does not respond to time range setting modifications.
*The newly set time range is active after the power supply has been turned off and on.
*With the power supply on, it is possible to regulate the preset time freely within the selected time range.