Error Display - SMC Networks EX600-SDN Series Operation Manual

▪ EX600-DXPC
Be sure to place a seal cap on any unused connectors.
Placing the seal cap appropriately enables the unit to achieve IP67 protection.
Handling care.
Please note the following points when using the open circuit detection function.
Open circuit detection setting can only be carried out by using a hand-held terminal. Setting cannot be
carried out using a PLC.
When a 2-wire type sensor, such as a contact sensor is used, during OFF state, a leakage current of max.
0.5 mA will not be detected. A sensor with a leakage current of min. 0.5 mA (in the OFF state) must be
used.
When a 3-wire type sensor is used, if the sensor has a current consumption of max. 0.5 mA, an open
circuit may not be detected.

Error display

Status LED displays the power supply and operation status. These can be checked according to the following:
LED
*
Status
OFF
Green light ON
Flashing red
All LEDs flashing
Red/green alternately
Red light ON
(Both adjacent LEDs
ON)
Red light ON
(only one LED is ON)
▪ EX600-DXNC
Note
Descriptions
Power supply for control and input is OFF, or input device is
OFF.
Input device is ON.
Either of the following:
Input device ON/OFF count has exceeded the set value.
Input device not connected (for open circuit detection type
only).
Component failure inside the digital input unit.
Stop using the product and contact SMC.
Without open circuit detection
Short circuit in power supply of either input device "0"or "1".
Check which input device has caused the short circuit.
With open circuit detection
Short circuit in power supply of input device "0".
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*
No.EX##-OML0007