Multifunction Delay Timer Relay Module

General Specifications

• Operating Voltage: 6V–30V (supports Micro USB 5.0V input)

• Trigger Signal: High-level trigger (3.0V – 24V)

• Output Load Capacity:

  • DC: ≤30V / 5A

  • AC: ≤220V / 5A

• Static Current: 20 mA

• Working Current: 50 mA

• Service Life: >100,000 operations

• Working Temperature: –40°C to +85°C

• Dimensions: 62 mm × 38 mm × 17 mm

• Time Range: 0.1 seconds to 999 minutes (continuously adjustable)

• Isolation: Optocoupler isolation for strong anti-interference

• Memory: Parameter retention after power loss

• Build Quality: Industrial-grade PCB

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Operating Modes

P1 – Delay Off Modes (Single Event Trigger)

• P1.1: Relay activates after a trigger, stays on for OP time, then turns off. Retrigger is ignored during OP.

• P1.2: Retriggering during OP restarts the OP timing.

• P1.3: Retriggering during OP turns the relay off and stops the timer.

P2 – Delay On Mode (Delayed Start)

• On trigger, relay remains off during CL time, then turns on for OP time, then off.

P3 – Cyclic Timer Modes

• P3.1: Trigger starts a repeating cycle of ON (OP) and OFF (CL). Retrigger stops the cycle.

• P3.2: Same as P3.1 but starts cycling automatically at power-on, no trigger needed.

  • LOP: Number of cycles (1–999, “—” for infinite loop)

P4 – Signal Hold Mode

• Relay stays on as long as the trigger signal is present. After signal ends, it remains on for OP time, then turns off. Retrigger resets the timer.

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Time Range Selection

Adjustable via the STOP button:

• XXX (e.g. 005): 1 to 999 seconds

• XX.X (e.g. 3.2): 0.1 to 99.9 seconds

• X.X.X (e.g. 3.2.1): 1 to 999 minutes

Example: To set OP to 3.2 seconds, choose XX.X format, then set value to 3.2.

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Parameter Definitions

• OP: ON duration (relay closed)

• CL: OFF duration (relay open)

• LOP: Loop count (used in P3.1/P3.2)

Each mode shares these parameters. If you switch from P1.1 to P1.2, the previously set OP value carries over.

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Parameter Setting Instructions

1. Select Mode:

   • From main screen (000), long-press SET (2s) to enter mode selection.

   • Use UP/DOWN to scroll through modes (P1.1 to P4).

2. Set Parameters (OP, CL, LOP):

   • Press SET to cycle through each parameter.

   • Use UP/DOWN to adjust values (long-press to scroll fast).

   • Press STOP to adjust time unit/decimal point.

   • Long-press SET to save and return to main screen.

3. Main Display:

   • 000 (no decimal) = idle

   • Decimal point ON = relay active

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Additional Functions

Relay Control (STOP Button):

• ON: Enable relay operation

• OFF: Disable relay (emergency stop)

Toggle by short pressing STOP in the main screen. The state will blink and then return.

Sleep Mode (Power Saving):

• C-L: Sleep after 5 minutes of inactivity (display off, relay functions normal)

• O-d: Normal mode (display always on)

Toggle by holding STOP for 2 seconds.