Time relay with delay, 8 timer modes: loop, delay, cyclic

Time Relay with Delay, 8 Timer Modes, Loop, Delay, Cyclic

A versatile relay module with a built-in timer, ideal for automation projects, including Arduino, ESP8266, ESP32, and Raspberry Pi. It offers 8 operating modes and a wide range of time settings—from 0.1 seconds to 999 minutes—making it suitable for many advanced applications. A major advantage of the module is its ability to retain settings after a power loss.

The module is easy to operate using four intuitive buttons. It features a clear display and an LED that indicates when the relay is activated. The trigger port allows you to start and stop the countdown, operate in continuous mode, and cycle the relay on and off.

Key Technical Features

• Supply voltage: 6V to 30V DC
• Trigger voltage: 1.3 V to 30 V DC (opto-isolated)
• Time range: 0.1 seconds to 999 minutes
• Relay current rating: 10 A at 250 V AC
• Current consumption: approx. 10 mA (relay off), 80 mA (relay on)
• Dimensions: 62 mm x 38 mm x 18 mm
• Compatibility: with ESP8266, with ESP32, with Arduino, with Raspberry Pi

Example Applications

• Automatic lighting control with delayed shut-off
• Cyclic activation of pumps or fans in ventilation systems
• Delayed power-on in audio systems and amplifiers
• Control of industrial processes requiring precise timing
• Creating alarm systems with a specified siren activation time

Benefits

• Versatility—as many as 8 different operating modes allow for adaptation to almost any project
• Reliability—the settings memory protects the configuration against power outages
• Safety—an opto-isolated trigger input protects the control circuit from interference
• Energy efficiency—the display can enter sleep mode after 5 minutes of inactivity
• Wide voltage range—flexible power supply and triggering facilitate integration with various systems

How to Set Up Functions

To enter configuration mode, press and hold the SET button for 2 seconds. Then use the UP and DOWN buttons to select the desired function. After selecting a function, briefly press SET to set the operating time using the UP and DOWN buttons. Confirm changes by holding down the SET button again for 2 seconds.

The decimal point position (time range) is changed using the STOP button while entering a value:

• XXX. – range from 1 to 999 seconds
• XX.X – range from 0.1 to 99.9 seconds
• X.X.X. – range from 1 to 999 minutes

The module also features a sleep mode. Holding down the STOP button for 2 seconds (until “C-P” appears) activates the display sleep mode, which turns off the display after 5 minutes of no signal at the trigger input. Repeating this operation restores normal mode (O-d message).

Description of individual operating modes

• Mode p1.1 – Trigger activation turns on the relay for the set time (OP). Re-triggering does not reset the counter.
• Mode p1.2 – Trigger activation turns on the relay for the set time (OP). Re-triggering resets the timer to zero.
• Mode p1.3 – Triggering the trigger activates the relay for the set time (OP). Triggering it again immediately deactivates the relay and resets the time.
• Mode p2 – Triggering the trigger starts the delay countdown (CL), after which the relay turns on for the set time (OP).
• Mode p3.1 – Triggering the trigger turns the relay on for a set duration (OP), followed by a delay (CL). The cycle repeats a specified number of times (LOP) or indefinitely (---).
• Mode p3.2 – Operation is identical to p3.1, but the trigger is the system’s power-on event itself.
• Mode p4 – the relay remains on as long as the trigger signal is present. After the signal disappears, a countdown (OP) begins until the relay turns off.