the alarm menu interface if press the "mute" button, relay 1 will be reset. After
the reset, if there is a new alarm generation, Relay 1 will re-action again.
Note:
Relay 2 without this mute function.
6.2 Status input
SPM33 provides flexible 2-way nodes configurable input, applied to monitoring
circuit breaker position signal, switch position signals and other status
information.
SPM33 provides active status node, which need an external power source. The
following 2-way status input as example to introduce this wiring mode.
◇
External active node wiring diagram is shown as below
：
In general, the external node is closed, SPM33 LCD corresponding status input
display is closed, while the internal state information is also set to 1; external
node is disconnected, SPM33 LCD corresponding status input display is turned
off, the internal state information is also set to 0.
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