9
S8M Operations and Operating Modes Section 1-2
Alarm Operation When the converted input voltage, current, internal temperature, or run time
exceeds the set value, the output will be cut off or an alarm will be output and
the error indicated on the Alarm Output (ALM) will be turned OFF. (The Over-
temperature Output (TMP) will also be turned OFF if the temperature exceeds
the set value.)
Operation in Setting
Mode
Setting Mode can be used to set the various parameters, but the S8M con-
nects to branch outputs in Setting Mode, just as it does in Run Mode. When
an error is detected, branch outputs will be cut off and external signals will be
output, just as they are in Run Mode.
Note If an error occurs in Setting Mode, the error code is not displayed
and the error cannot be reset. To reset the error, first switch the op-
erating mode to Run Mode and then reset the error.
Operation in Test
Mode
In Test Mode, each branch output can be set to ON or OFF (connected or dis-
connected). In addition, the operation of the startup sequence and shutdown
sequence can be verified.
• The output connection status does not change when the operating mode
is switched from Run Mode to Test Mode.
• If a branch output is OFF (disconnected) in Test Mode, it will not go ON
even when the operating mode is changed to Run Mode.
If you want to set unused branch outputs to OFF, set those outputs to OFF
in Test Mode before switching to Run Mode.
• If the power is turned OFF while the S8M is in Test Mode, the S8M will
start in Test Mode the next time that the power is turned ON.
Note When an error occurs in Test Mode, branch outputs will be cut off
and external signals will be output, just as they are in Run Mode.
On the other hand, the error code will not be displayed and the error
cannot be reset. To reset the error, first switch the operating mode
to Run Mode and then reset the error.
Note (1) When the S8M is shipped from the factory, all branch outputs are set to
OFF (disconnected). A newly purchased S8M will automatically enter
Setting Mode when it is turned ON for the first time. After setting the pa-
rameters, switch to Test Mode, connect the branch outputs that will be
used, and then switch to Run Mode.
(2) If a branch output is OFF (disconnected) when the mode is changed from
Test Mode to Run Mode, it will not be connected (ON) in Run Mode.
(3) If the power is turned OFF while the S8M is in Test Mode, the S8M will
start in Test Mode the next time that the power is turned ON, but all
branch outputs will be OFF.
Operation with
Support Tool
Connected
The S8M will be operational even when parameters are being set with the
Support Tool.
If data is downloaded from the Support Tool (parameters transferred from the
Support Tool to the S8M), the parameters in the S8M will be updated immedi-
ately.
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