10.1.2.21 Automatic continuation of the reclosing sequence M12391-223 v4SMBRREC function can be programmed to proceed to the following reclosing shots (if multipleshots are selected) even if start signals are not received from the protection functions, but thebreaker is still not closed. This is done by setting parameterAutoCont =On andtAutoContWait to the required delay for the function to proceed without a new start.10.1.2.22 Thermal overload protection holding the auto-reclosing function backM12391-226 v2If the input THOLHOLD (thermal overload protection holding reclosing back) is activated, it willkeep the reclosing function on a hold until it is reset. There may thus be a considerable delaybetween start of Auto-Reclosing and reclosing command to the circuit-breaker. An externallogic limiting the time and sending an inhibit to the INHIBIT input can be used. The input canalso be used to set the Auto-Reclosing on hold for a longer or shorter period.10.1.3 Setting guidelines IP14929-1 v110.1.3.1 Configuration M12399-3 v2Use the PCM600 configuration tool to configure signals.Autorecloser function parameters are set via the local HMI or Parameter Setting Tool (PST).Parameter Setting Tool is a part of PCM600.Recommendations for input signals M12399-7 v9Please see figure 62 and default factory configuration for examples.ON and OFFThese inputs can be connected to binary inputs or to a communication interface block forexternal control.STARTIt should be connected to the trip output protection function, which starts the autorecloser for1/2/3-phase operation (SMBRREC) function. It can also be connected to a binary input for startfrom an external contact. A logical OR-gate can be used to combine the number of startsources.IfStartByCBOpen is used, the CB Open condition shall also be connected to theinput START.STARTHS, Start High-speed auto-reclosingIt may be used when one wants to use two different dead times in different protection tripoperations. This input starts the dead timet1 3PhHS. High-speed reclosing shot 1 started bythis input is without a synchronization check.INHIBITTo this input shall be connected signals that interrupt a reclosing cycle or prevent a start frombeing accepted. Such signals can come from protection for a line connected shunt reactor,from transfer trip receive, from back-up protection functions, busbar protection trip or frombreaker failure protection. When the CB open position is set to start SMBRREC, then manualopening must also be connected here. The inhibit is often a combination of signals fromexternal IEDs via the IO and internal functions. An OR gate is then used for the combination.1MRK 505 355-UEN A Section 10Control159Application manual
