USER MANUAL – Z-SG
7
POWER SUPPLY
Supply voltage
10
– 40 Vdc or 19 – 28 Vac ( 50Hz - 60Hz)
Power
consumption
Max: 2W
The power supply transformer necessary to supply the module must be comply with EN60742
(Isolated transformers and safety transformers requirements).
To protect the power supply, is recommended to install a fuse.
4.
LEDs for signalling
In the front-side panel there are 4 LEDs and their state refers to important operating conditions
of the module.
LED
LED status
Meaning
PWR
Constant light
The power is on
ERR
Blinking light
See “Setting by calibration button”
Turn off after 3
seconds
See “Setting by calibration button”
RX
Constant light
Verify if the bus connection is corrected
Blinking light
The module received a RS485 data packet
