Functions
© Panasonic Industrial Devices SUNX Co., Ltd. 2020
105
3-6 External Device Monitor Function (8-core cable, 12-core cable)
The external device monitor function is used to check if an external device (safety relay, contac-
tor) connected to the control output (OSSD 1 / 2) operates normally in accordance with the con
-
trol output (OSSD 1 / 2).
Contact “b” of the external device is monitored, and if an error is detected such as malfunction-
ing due to contact welding, the device is put in the lockout state and the control output (OSSD 1
/ 2) turns OFF.
The monitor time of contact “b” is 300ms. If 300ms is exceeded, the lockout state activates.
●
Enabling the external device monitor function
Connect the external device monitor input wire (pale purple) to the external safety relay that
is connected to the control output 1 (OSSD 1) wire (black) and the control output 2 (OSSD 2)
wire (white).
●
Disabling the external device monitor function
Connect the external device monitor input wire (pale purple) to the auxiliary output wire (red).
Set the auxiliary output to [negative logic of control output (OSSD 1 / 2)].
When the external device monitor function is invalid, external devices cannot be connected
to the auxiliary output.
Summary of Contents for SF4D-*-01 Series
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