User manual

30
Error N2
Err2
Pin 1: GND
Pin 2: RX (input)
Pin 3: TX (output)
Pin 4: +5V (output)
Pin connections
Transmission parameters
Baud rate: 1200 bps
Data bits: 8 bit
Parity: none
Stop bits: 1 bit
9. ERROR MESSAGES
The device can show the following error messages:
Error N1
Err1
Error N3
Err3
Note:
If an error is detected, the relay will automatically switch off.
The temperature sensor
has a short circuit.
The received data from the
temperature sensor are corrupt.
No temperature
sensor is attached.
The temperature
sensor was reset
unexpectedly.
Error N4
Err4
TemperaTure swiTch