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● Mode A: Level application. Alarm outputs high and low level, and the alarm outlet is OD,
which requires external pull-up resistance (10 K Ohm typical) to work. The maximum
external pull-up level is 12 V, maximum port current is 300 mA and the default output
signal is high-level (external pull-up voltage). The default output signal switches to low-
level when there is alarm output (As long as the operating current is below 300 mA, the
output low-level voltage is lower than 0.8 V).
● Mode B: Switch application. Alarm output is used to drive external circuit, the
maximum voltage is 12 V and the maximum current is 300 mA. If the voltage is higher
than 12 V, please use an additional electric relay.
Step 3
Log in to web interface, and configure alarm input and alarm output in alarm setting.
● The alarm input on the web interface is corresponding to the alarm input end of the I/O
port. There will be high level and low level alarm signal generated by the alarm input
device when alarm occurs, set the input mode to "NO" (default) if the alarm input signal
is logic "0" and to "NC" if the alarm input signal is logic "1".
● The alarm output on the web interface is corresponding to the alarm output end of the
device, which is also alarm output end of the I/O port.
Figure 1-3 Alarm output
3
Quick Start Guide