A - OFF delay without supply voltage
When the supply voltage U is supplied, the output relay R switches into on-position (green LED U illuminated). If the supply voltage is interrupted (green LED U not illuminated), the set interval T begins. After the set interval T has lapsed, the output relay R switches into off-position. If the supply voltage is reconnected before the interval T has lapsed, the interval already measured is erased and is restarted with the next cycle.
U - supply voltage; R - output state of the relay; T - measured time; t - time axis
Relays performing the function "A": RPC-2A-UNI