Digital Timer Relay Module XY-WJ01 – UART Communication

Timer module (with time delay) XY-WJ01 is a versatile device that can be used as timer relay aka delayed switch on aka timer switch aka delay switch module – a system with a countdown of the activation time. The device is equipped with a dual digital time display with a power supply in the range of 6V to 30V. It has protection against reverse polarity. The time can be adjusted from 0.01 seconds to 9999 minutes. The timer also enables emergency disconnection of the power supply from the connected load. After 5 minutes of inactivity, the backlight is turned off to save energy. All parameters are stored in memory when power is disconnected.

Characteristics:

built-in LCD display
emergency stop function
power saving mode – only after 5 minutes of inactivity
galvanic isolation
memory of settings after a power cut
communication with the computer via UART

Specification:

Supply voltage: 6 – 30V
Trigger signal source: high level (3.0V ~ 24.0V), low level (0.0V ~ 0.2V),
Working current: 80 mA
Quiescent current: 15 mA
Time range: 0.01 sec to 9999 min
Service life: minimum 100,000 cycles
Relay load capacity: 20A 14VDC / 20A 125VAC / 10A 240VAC
Mounting hole dimensions: 39 x 71mm
Device dimensions: 43 x 78 x 21mm