Mitsubishi FX series how to make an alarm system?

A complete device should include manual functions, protection functions, alarm functions, automatic operation functions, etc. Today, we introduce to you how Mitsubishi FX series is an alarm system.

1. Basic introduction

State S, S0~S899, S1000~S3999 are the devices used for step ladder, S900~S999 are the devices used for alarm system, called signal alarm;

M8049, alarm monitoring start flag, used to start the alarm monitoring function;

M8048, alarm contact, when any signal alarm (S900~S999) is energized, M8048 will be closed. It is necessary to power up M8049 to activate monitor function.

2. Introduction of alarm mode

â–²Alarm automatic reset type, the advantage of this method is that when the alarm condition is disconnected, it will automatically reset the alarm

â–² multiple conditions alarm, automatic reset type. If there are multiple conditions to meet, an alarm is generated. Of course, one of the alarm conditions is disconnected and the alarm is automatically reset.

â–² delay alarm, automatic reset type. When certain alarm conditions are met, it cannot be considered as a fault, but it can be a malfunction. We can add a delay to make a determination. If the ON time passes through our set value, we can determine that it is an alarm!

â–² alarm occurs self-holding mode. When some alarms occur, they cannot be automatically reset and they need to be kept until the user confirms them. Only when the alarm is allowed to disappear, we can use the SET mode to start the alarm and let it self-hold.

â–²Multi-condition alarm self-holding mode

â–² Delay alarm, self-retaining

3. Reset alarm mode

â–² Single reset alarm type. When you need to perform a single reset you can use this method

â–² batch reset alarm. If you want all alarms to be reset, you can reset the commands in batches and reset all alarms.

â–² single reset, if you need to press the reset button to reset an alarm, you can use the ANR instruction to automatically reset an alarm that has occurred

â–² alarm monitoring start and alarm contact output function, using M8048 can detect whether the alarm occurs, output alarm indicator or buzzer.

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