Mitsubishi Electric NZ2GFCE-60DAV8 User Manual page 72

Notification
When the digital value is greater than the alert output upper limit value, or smaller than the alert output lower limit value, an
alert is indicated by Alert output flag (RWrA), Alert output signal (RX1E), and the lighted up ALM LED.
• Alert output flag (RWrA): The bit corresponding to the contents of the alert turns on ( Page 109 Alert output flag).
• Alert output signal (RX1E): ON
• ALM LED of the D/A converter module: On
In addition, an alert occurrence (alarm code: 0AH) is stored in Latest warning code (RWr1).
Operation
When the digital value exceeds the alert output upper limit value or is below the alert output lower limit value, an alert is output
and the analog output value becomes any of the following:
• When the digital value exceeds the alert output upper limit value: An analog value converted from the digital value of the
alert output upper limit value is output.
• When the digital value is below the alert output lower limit value: An analog value converted from the digital value of the
alert output lower limit value is output.
After an alert occurs, the analog output value returns to the normal value by changing the digital value to a value within the
setting range. However, Alert output flag (RWrA) and Alert output signal (RX1E) are not cleared. (ALM LED remains turned
on.)
Clearing the alert output
The alert output can be cleared by either of the following two methods.
• Turning on and off Alert output clear request flag (RY1E)
• Turning on and off Initial data setting request flag (RY9)
When the alert output is cleared, the D/A converter module results in the following state:
• Alert output flag (RWrA): OFF
• Alert output signal (RX1E): OFF
• ALM LED of the D/A converter module: Off
• The alert occurrence (alarm code: 0AH), which is stored in Latest warning code (RWr1), is cleared.
When the scaling function is enabled
When Scaling enable/disable setting (address: 0118H) is set to Enable (0), the scale-converted digital value is the target for
the alert.
When setting CH1 Alert output upper limit value (address: 0108H) to CH8 Alert output lower limit value (address: 0117H), set
values considering the scaling range.
7 FUNCTIONS
70
7.11 Alert Output Function
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