Preface
This product is an intelligent delay module implemented with smart ASIC technology. It may be powered from 5V, 9V, 12V, 18V, or 24V. This product supports 26 delay modes, which basically cover all common occasions. The delay mode and unit may be easily adjusted through a button. The high delay accuracy of the product is one of the outstanding features compared to competing products, and its long delay accuracy may be as high as 30 ppm. The additional voltage detection function may be performed on the input terminal of the product, which makes it even more flexible. The functionality of the product is completely customizable per request in mass production.
Structural Description
There are six screw terminals, one button, one potentiometer, one jumper, and two LED indicators on the product. The description of each terminal and component is shown in the figure and table below.
Chapter 2: Detailed Function Description
2.1 Configuration Unlocking Description
To adjust the delay mode and time, unlocking the settings is needed first. To unlock the settings, keep the button pressed, then connect the power supply to the module. After about 3 seconds, the relay on the product will make, and the indicator light will turn on, indicating that the unlocking is complete. At this point, release the button and keep the product powered on to unlock the product's delay mode and time settings for this power cycle only. Then, both the delay time and mode may be configured as described in the following sections. After the configuration is complete, release the button and power cycle the product. The product will not respond to key presses unless the settings are unlocked, ensuring that the delay mode and time will not be unintentionally tampered with during normal operation.
2.2 Configuration Reset Description
To reset the delay mode and time to factory defaults, press and hold the button, then connect the power supply to the module. After about 3 seconds, the product will be unlocked; keep holding the button for more than 10 seconds until the product's relay and indicator alternate rapidly on and off, indicating that the configuration reset is complete. After the configuration reset is complete, the new delay mode and time may be set directly without power cycling again, as the configuration has been unlocked.
2.3 Delay Mode Description
This product has 3 delay time units and 8 basic delay templates built-in, which are combined to form 24 delay modes, plus two self-locking modes, for a total of 26 delay modes. A short press of the button will cycle through all 26 delay modes of the product. For each short press, the delay mode will switch to the next one in the table, while the indicator light will flash according to certain patterns to indicate the currently selected delay mode. The specific pattern is that the indicator first flashes 1–4 times at an interval of 0.5 seconds to represent the delay time unit, and then flashes 1–8 times at an interval of 0.5 seconds after a pause of 1.5 seconds to indicate the basic delay template.
Since the indicator is connected to the relay, the relay will also toggle when the delay mode is adjusted. Therefore, when adjusting the delay mode, it is recommended to disconnect all electrical connections on the relay unless it is confirmed that the toggling of the relay will not affect the load. The specific 26 delay modes are listed in the table below.
Table 2-1: List of Delay Modes
| No. | Delay Unit | Delay Action | Indicator Light Flashes |
|---|
| 11 | Second | High-level triggers, breaks after a delay period | Flashes once, then flashes again after a short pause |
| 12 | Second | Low-level triggers, breaks after a delay period | Flashes once, then flashes twice after a short pause |
| 13 | Second | Rising edge triggers, breaks after a delay period | Flashes once, then flashes 3 times after a short pause |
| 14 | Second | Falling edge triggers, breaks after a delay period | Flashes once, then flashes 4 times after a short pause |
| 15 | Second | High-level sustains, on-off-on toggling with delay intervals | Flashes once, then flashes 5 times after a short pause |
| 16 | Second | Low-level sustains, on-off-on toggling with delay intervals | Flashes once, then flashes 6 times after a short pause |
| 17 | Second | Rising edge triggers, on-off-on toggling with delay intervals | Flashes once, then flashes 7 times after a short pause |
| 18 | Second | Falling edge triggers, on-off-on toggling with delay intervals | Flashes once, then flashes 8 times after a short pause |
| 21 | Minute | High-level triggers, breaks after a delay period | Flashes twice first, then flashes once after a short pause |
| 22 | Minute | Low-level triggers, breaks after a delay period | Flashes twice first, then flashes twice after a short pause |
| 23 | Minute | Rising edge triggers, breaks after a delay period | Flashes twice first, then flashes 3 times after a short pause |
| 24 | Minute | Falling edge triggers, breaks after a delay period | Flashes twice first, then flashes 4 times after a short pause |
| 25 | Minute | High-level sustains, on-off-on toggling with delay intervals | Flashes twice first, then flashes 5 times after a short pause |
| 26 | Minute | Low-level sustains, on-off-on toggling with delay intervals | Flashes twice first, then flashes 6 times after a short pause |
| 27 | Minute | Rising edge triggers, on-off-on toggling with delay intervals | Flashes twice first, then flashes 7 times after a short pause |
| 28 | Minute | Falling edge triggers, on-off-on toggling with delay intervals | Flashes twice first, then flashes 8 times after a short pause |
| 31 | Hour | High-level triggers, breaks after a delay period | Flashes 3 times first, then flashes once after a short pause |
| 32 | Hour | Low-level triggers, breaks after a delay period | Flashes 3 times first, then flashes twice after a short pause |
| 33 | Hour | Rising edge triggers, breaks after a delay period | Flashes 3 times first, then flashes 3 times after a short pause |
| 34 | Hour | Falling edge triggers, breaks after a delay period | Flashes 3 times first, then flashes 4 times after a short pause |
| 35 | Hour | High-level sustains, on-off-on toggling with delay intervals | Flashes 3 times first, then flashes 5 times after a short pause |
| 36 | Hour | Low-level sustains, on-off-on toggling with delay intervals | Flashes 3 times first, then flashes 6 times after a short pause |
| 37 | Hour | Rising edge triggers, on-off-on toggling with delay intervals | Flashes 3 times first, then flashes 7 times after a short pause |
| 38 | Hour | Falling edge triggers, on-off-on toggling with delay intervals | Flashes 3 times first, then flashes 8 times after a short pause |
| 43 | Self-locking | Rising edge triggers, toggles on and off on each trigger in a self-locking manner | Flashes 4 times first, then flashes 3 times after a short pause |
| 44 | Self-locking | Falling edge triggers, toggles on and off on each trigger in a self-locking manner | Flashes 4 times first, then flashes 4 times after a short pause |
When retail version products are shipped, the selected delay mode is always 11. The full-featured retail version has all 26 delay modes; the simplified retail version has 12 delay modes in total, including 11, 12, 13, 14, 21, 22, 23, 24, 31, 32, 33, and 34.
2.4 Delay Time Description
The delay time of this product is also adjusted by the same button. To adjust the delay time, press and hold the button until the indicator starts to flash. Each complete blink of the indicator light represents one unit of delay time. Incomplete blinks will not be counted. The range of delay time setting is 0–255. When the delay time is set to 0, in the high-level or low-level triggering templates, the only function that remains is voltage detection and thresholding. The delay capability is lost, and the rising edge and falling edge trigger templates are invalid. If the delay time is set to 0 when one of the on-off-on toggling templates is chosen, the delay time will be regarded as 500 ms.
2.5 High-Level Thresholding Description
The trigger terminal of this product may accept an input voltage from 0–30V. The voltage threshold decides whether a particular input voltage is high level or low level. A voltage above the threshold is considered high-level, and a voltage below the threshold is considered low-level. This threshold is adjusted through a knob. Rotating it clockwise will set the threshold higher, and vice versa. The trigger terminal of this product may withstand up to 50V over a long period, but it may be damaged if this is exceeded. Any voltage exceeding 35V is treated as high-level regardless of the knob setting.
2.6 Mass Customization Description
The core of this product is a dedicated intelligent delay integrated circuit, so its delay time, mode, and voltage threshold may be arbitrarily customized. When customizing, all delay or action sequences different from the factory standard ones may be used. All parameters may be preconfigured to any value at the factory, and the wiring terminals, buttons, indicators, and potentiometers may be omitted to lower costs. You may also return a preconfigured retail-version product that has been fully set up and ask us to produce a version with the exact same presets, which helps reduce the tedious process of confirming the demand details.
Chapter 3: Product Modifications
3.1 Preface
This product has the following modifications whose ordering numbers are in the form of B2J06[aa]R[b]T[c]M[dd]. The [aa] field is fixed as 01, as the module only has a single-channel version; the [b] field and [c] field are the main version number and sub-version number of the module, respectively; the [dd] field determines the specific modification of the module. The module modification classes are mutually independent. If no specific requirement is designated when the product is shipped, the default option is the 12V relay output type, that is, M31.
3.2 Transistor Output Type Description
This version is connected to the circuit in open-drain mode. The transistor has a rated working voltage of 12–48V DC and a rated current of 10A. With a 10A freewheeling diode on the transistor, it can directly power an inductive load up to 10A. Certain loads, e.g., filament lamps, mercury lamps, exhibit a current spike during startup; some other loads, e.g., heavy-duty motors, speakers, and electromagnets, emit extremely strong EMI during operation. Due to size limitations, it is impossible to implement good power line filters on this module; thus, when the power of such loads exceeds 1W, it is recommended to use standalone power sources for the module and to place these loads as far as possible from the module, or the module may repeatedly reset when the load powers on.
Compared to relays, transistors are far more sensitive. Thus, when the module is being powered on or off, the internal states of the microcomputer may become invalid; even if the delay is untriggered, the transistor may make for a moment and then break. This issue is nonexistent in the relay version but must be accounted for when using transistor version modules, especially when the devices connected to the output may respond to such momentary pulses. An effective countermeasure is to use power sequencing: ensure that the product is powered on before the output is powered on and that the output is powered off before the product is powered off.
Chapter 4: Technical Specifications
4.1 Normal Working Conditions
| Description | Range |
|---|
| Supply voltage | 5V DC: 4.8–5.2V
9V DC: 8.5–11V
12V DC: 11–14V
24V DC: 20–28V |
| Power supply ripple | Less than 1Vp-p |
| Supply current | Less than 50mA |
| Input stress | DC 0–30V |
| Output stress | Relay type: DC 30V or AC 0–220V, 8A
Transistor type: DC 12–48V, 8A |
| Output isolating voltage | Relay type: Less than 250V
Transistor type: Less than 130V |
| Operating temperature | -20–60℃ |
4.2 Absolute Maximum Ratings
The extreme conditions that this module can withstand are shown in the following table. Stresses at or above those listed here may permanently damage the module.
| Description | Range |
|---|
| Supply voltage | 5V DC: 5.3V
9V DC: 11.5V
12V DC: 15V
24V DC: 30V |
| Self-resettable fuse | DC 30V, 500mA |
| Input stress | DC 50V |
| Output stress | Relay type: AC 250V, 10A
Transistor type: DC 55V, 10A |
| Output isolating voltage | Relay type: DC 1000V, 60s (Type test only)
Transistor type: DC 250V, 60s (Type test only) |
| Relay mechanical life | Relay type: More than 100,000 times (Actual life varies with load, >10,000 times under heavy load) |
| Storage temperature | -40–85℃ |
4.3 Other Parameters and Certifications
The other parameters and certifications of this module are listed as follows. These parameters and certifications include electrostatic discharge, electrical fast transient, and voltage surge tests that comply with the requirements of IEC61000-6-1-2016 (Edition 3.0, 2016-08) for light industry purposes. During all of these tests, the modules are powered by a well-grounded 12V supply and in active delay operation.
4.4 Notes on Reliability
This product is only qualified for commercial applications due to its miniature size; thus, it is not recommended for formal industry situations with strong interference. Additional power filters and/or port filters are required if it must be used in this way. If such additional filters are not desired, a switching power supply with Electrical Fast Transient (EFT) resistance is required to power the product, and the power supply cord must be shorter than 3m.
In addition, if the load exhibits current spikes during startup or emits extremely strong EMI during operation, it is recommended to use standalone power sources for the module and to place these loads as far as possible from the module, or the module may repeatedly reset when the load powers on, especially in cases where the power source has poor transient responsiveness or the 5V version is used.
During the test, the negative supply of the product is directly connected to the earth by default. The same connection should be made to obtain the stability index in the table above.
