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Interval Timers

Seven multi-function interval timer modes for all six setpoints

Technical Documentation › Interval Timers

All Tiger controllers include seven multi-function interval timers available on all six setpoints:

  • Normal — Adjustable Delay On Make / Adjustable Delay On Break
  • 1-Shot ON — Adjustable Delay On Make / Adjustable Min ON-Time
  • 1-Shot OFF — Adjustable Delay On Break / Adjustable Min OFF-Time
  • Pulse ON — Adjustable Delay On Make / Adjustable Max ON-Time
  • Pulse OFF — Adjustable Delay On Break / Adjustable Max OFF-Time
  • Repeat ON — Adjustable ON-Time / Adjustable OFF-Time
  • Repeat OFF — Adjustable OFF-Time / Adjustable ON-Time

Normal Mode

This is a single actuation mode that individually programs the relay's setpoint with delay-on-make (DOM) and delay-on-break (DOB) settings. When the setpoint deactivates, the DOB delay keeps the relay energized for the programmed time period.

Normal mode timing diagram

Normally OFF / Pulsed ON Modes

These are time control modes where the relay is normally OFF (de-energized) and pulses ON (energizes) when the setpoint activates.

Repeat ON Mode

A multiple actuation mode with programmable adjustable off-time and on-time settings. When the signal activates the setpoint, the relay energizes immediately and remains energized for the programmed ON-T setting. When the ON-T delay is complete, the relay de-energizes and the OFF-T delay starts the cycle again. The cycle repeats as long as the setpoint is active.

Repeat ON mode timing diagram

Pulse ON Mode

A single actuation mode with programmable DOM and maximum on-time settings. When the signal activates the setpoint, the DOM prevents the relay from energizing until the programmable DOM setting times out. The ON-T then energizes the relay for the maximum programmed on-time period. For the pulse mode to repeat, the setpoint must deactivate and then activate again.

Pulse ON mode timing diagram

1-Shot ON Mode

A single actuation mode with programmable DOM and minimum on-time settings. When the signal activates the setpoint, the DOM prevents the relay from energizing until the programmable setting times out. The MIN-ON then energizes the relay for at least the minimum programmed on-time. If the setpoint remains active longer than the MIN-ON period, the relay stays energized until the setpoint deactivates.

1-Shot ON mode timing diagram

Normally ON / Pulsed OFF Modes

These are time control modes where the relay is normally ON (energized) and pulses OFF (de-energizes) when the setpoint deactivates.

1-Shot OFF Mode

A single actuation mode with programmable DOB and minimum off-time settings. When the signal deactivates the setpoint, the relay remains energized until the programmable DOB period times out. The MIN OFF-T then de-energizes the relay for the minimum programmed off-time period.

1-Shot OFF mode timing diagram

Pulse OFF Mode

A single actuation mode with programmable DOB and maximum off-time settings. When the signal deactivates the setpoint, the relay remains energized until the programmable DOB setting times out. The OFF-T then de-energizes the relay for the maximum programmed off-time period. For the pulse mode to repeat, the setpoint must activate and then deactivate again.

Pulse OFF mode timing diagram

Repeat OFF Mode

A multiple actuation mode with programmable off- and on-time settings. When the signal deactivates the setpoint, the relay remains de-energized for the programmed OFF-T setting and energizes when the ON-T setting activates. The cycle repeats as long as the setpoint is deactivated. If the setpoint activates, the relay energizes immediately.

Repeat OFF mode timing diagram