To control cost
(and almost anything else)
think inside the box

OPERATION: Input voltage must be applied at all times for proper operation. The operation begins with the output (relay or solid state) de-energized. Closing S1 enables the next alternating operation. When S1 opens (trailing edge triggered), the time delay begins. At the end of the time delay, the output energizes and remains energized until S1 is (re-closed and) re-opened. Then the output relay de-energizes and remains until S1 opens again. Each time S1 opens the time delay occurs and the output transfers.
RESET: Removing input voltage resets the output and the time delay.
Function can be applied to these Series: ERPQ, HRPS, KRPS

Trailing Edge Flip-Flop (Alternating Relay)

Leading edge flip-flop: (ProgramaCube^® Function F)
OPERATION: Input voltage must be applied before and during operation. The operation begins with the output (relay or solid state) de-energized. Upon momentary or maintained closure (leading edge triggered) of the initiate switch S1, the time delay begins. At the end of the time delay, the output energizes and remains energized. Opening or re-closing S1 during timing has no affect. After the output transfers, the next closure of S1 starts a new operation. Each time an S1 closure is recognized, the time delay occurs and then the output transfers, ON to OFF, OFF to ON, ON to OFF. The first operation will occur if S1 is closed when input voltage is applied.
RESET: Removing input voltage resets the time delay and the output to the de-energized state.
Function can be applied to these Series: ERPQ, HRPS, KRPS, KSPS

Leading Edge Flip-Flop

V = Voltage    NO = Normally Open Contact    R = Reset 
   NC = Normally Closed Contact    TD = Time Delay   
    S1 = Initiate Switch   
= Undefined time