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Temperature Controller METICOM CTI Series
7.2 Start Trigger Modes
This Sequential Valve Gate controller supports gates open/close 1~2 times in a complete cycle.
If the start trigger duration time is longer than a complete cycle of gate open/close, then the
control process is:
1) When the controller receives the start trigger, it starts the timer from the zero time position.
2) Gates open after T1 time (or screw position is T1) from the controller receives start trigger;
3) Gates close after T2 time (or screw position is T2) from the gates open;
4) Gates open again after T3 time (or screw position is T3) from the gates close;
5) Gates close after T4 time (or screw position is T4) from the gates open;
6) The controller waits a new start trigger.
If the start trigger time of duration is shorter than a complete cycle of gate open/close, then the
control process has 4 modes selected by parameter “Input Type”.:
Mode 0: Once the gate open/close cycle starts, it will ignore the new start trigger until the cycle
ends.
The control process is similar to the start trigger time of duration is longer than a complete
cycle of gate open/close.