Muting Lamp Diagnosis Function (Only For St4-C12Ex) - Panasonic ST4 Series Instruction Manual

<In case of lockout>
When using the sensor diagnosis function in the condition that an error is indi-
cated on the fault display (red), a place where error occurs can be further nar-
rowed.
In case of lockout, turn OFF the power, then turn ON the setting switch "SW 5."
After that, turn ON the power again. The control output (OSSD 1 / 2) becomes
OFF hold, and " " is indicated on the fault display (red) to conduct diagnosis
of ST4-A□.
After turning OFF the power, eliminate the error and turn OFF the setting switch
"SW 5." When turning ON the power again, returns to the normal operation.
For the error symptoms, refer to "Chapter 5 Troubleshooting."
(Example)
In case six units of ST4-A□ are connected and the muting input indica-
tors (orange) of addresses 1 and 2 light up
Address 4
Address 5
Address 6
Cable between the addresses 2
and 3 may be disconnected , or
ST4-A□ on the address 3 may
be broken.

3-11 Muting Lamp Diagnosis Function (Only for ST4-C12EX)

It is possible to nullify the muting lamp diagnosis in this function.
The muting function is available continuously when the muting lamp is not connected.
To nullify the muting lamp diagnosis function, turn OFF the power once, and
turn ON the setting switch "SW 8," then turn ON the power again.
Setting switch
"SW 8"
© Panasonic Industrial Devices SUNX Co., Ltd. 2016
Make sure to turn OFF the power in order to eliminate the error.
Address 1
Released
Address 2
Address 3
Make sure to turn OFF the power in order to set the muting lamp
diagnosis function.
Muting lamp diagnosis function
Valid
Address 4 Address 1
Address 5 Address 2
Address 6 Address 3
The muting input indicators
(orange) of the addresses 3 to
6 also light up.
Invalid
Functions
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