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TDK-Lambda
EZA2500 series
Quick Manual / Basic
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③
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6) About the Alarm of EZA
● EZA generates the Alarm signal and stops when a device error occurs. There are two
kinds of Alarms as follows.
a) Light alarm: EZA stops. If the cause of the EZA abnormality is removed, the
operation state is automatically restored. The alarm signal is not output.
b) Heavy alarm: EZA stops. Even if the cause of the EZA abnormality is removed, the
operation state will not return unless the return signal is input.
In this case, the red
LED of "ALM" on the front panel will light, and
“
pin1
”
of the external signal
connector CN will be open.
To restore, it is necessary to press the reset switch on
the front panel, or input the return signal by either of the methods of shorting the CN
“
pin11
”
to the
“
SG
”
terminal and opening it, or sending the return signal via
RS485 .
● The following describes how to check the alarm and input the restoration signal by
using “CNVCommCC”.
For details of alarms, refer to p11, 12 and p14-16 of EZA2500series
Instruction manual.
