Step 2
Connect alarm output device to the alarm output end of the I/O port. The alarm output is
open-drain output, which works in the following modes.
Mode A: Level application. Alarm outputs high and low level, and the alarm outlet is
●
OD, which requires external pull-up resistance (10K Ohm typical) to work. The
maximum external pull-up level is 12 V, maximum port current is 300mA 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.
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.
2.3.3 Connecting the Explosion-Proof Flexible Tube
Before connecting the composite cable, you need to make it explosion-proof. The common method
is to cover the cable with an explosion-proof flexible tube.
Procedure
Step 1
Cover the cable with the explosion-proof flexible tube, remove the compression nut, and
fix explosion-proof flexible tube to external 3/4 thread.
Figure 2-5 Alarm input
Figure 2-6 Alarm output
11
Quick Start Guide
Need help?
Do you have a question about the DH-IPC-HDEW Series and is the answer not in the manual?