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Chapter 3. Operating This Device
z When an error occurs
The 7-segment display alternately displays an alarm code and the code for the
operating status where the fault stop occurred. Every time the DISP switch is
pressed, the display changes between the flame voltage and alternate display of the
alarm code and the operating status code when fault stop occurred.
• Alarm codes
Alarm codes Sub-code Description
E9
08 Alarm at power-on
E9
50– Device error
Display example when an error occurs
(Sub-code)(Alarm code) (Operating status code)
The item displayed changes every 0.8 s.
z If an event occurs
If an event specified in advance occurs, the 7-segment display displays the event
code. If multiple events have occurred, all the corresponding event codes are
sequentially displayed starting from the smallest one.
Display example (if events A 1 and A2 have occurred)
The item displayed changes every 0.8 s.
Press the RESET switch for 3 s or longer or short the contact reset input for 3 s or
longer to clear all active events at the same time. However, note that the RESET
switch and contact reset input cannot be used to clear events during a fault stop.
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