This units can function as both a Low level trigger or High level trigger by using the jumper.
Features of the Relay Modules:
– Maximum load: AC 250V/10A, DC 30V/10A
– SMD optocoupler isolation
– stable performance
– trigger current 5mA
– Operating voltage 24V
– high or low trigger by a jumper setting
– Fault-tolerant design. Even if the control line is broken, the relay will not operate
– Power indicator LED(green)
– status indicator LED (red)
– module size: 50mm*26mm*18.5mm (L*W*H)
Interface:
1. VCC: Positive (DC+)
2. GND: Negative (DC-)
3. IN1, IN2: Control inputs activated by High or Low Level
4. CTR1 – CTR8: IN Signal input trigger can be high or low level
Outputs:
1. NO1 – NO8: Normally open relay interface
2. COM1 -COM8 Relay Common Interface
3. NC2 – NC8: Normally closed relay interface
High and low level trigger options:
– Low level trigger when jumper connected to LOW pin
– High level trigger when jumper connects to HIGH pin