EL3104 - Connection, display and diagnostics
Connection EL3104 | ||||
|---|---|---|---|---|
Terminal point | Description | Internally connected | Max. current carrying capacity *) | |
Name | No. | |||
+ Input 1 | 1 | + Input 1 | - | not applicable (voltage input) |
- Input 1 | 2 | - Input 1 | - | not applicable (voltage input) |
+ Input 3 | 3 | + Input 3 | - | not applicable (voltage input) |
- Input 3 | 4 | - Input 3 | - | not applicable (voltage input) |
+ Input 2 | 5 | + Input 2 | - | not applicable (voltage input) |
- Input 2 | 6 | - Input 2 | - | not applicable (voltage input) |
+ Input 4 | 7 | + Input 4 | - | not applicable (voltage input) |
- Input 4 | 8 | - Input 4 | - | not applicable (voltage input) |
*) Constant and peak value
 | GND connection points The GND connection points of the terminal are not connected internally directly, but via EMC protection components. Therefore, each analog encoder/sensor must be connected separately with 2 wires, even if the connection diagram of the terminal for the channels indicates a common ground (GND). |
| Current carrying capacity of the input contacts The maximum permitted current on the signal-relevant terminal points (inputs, GND) is 40 mA (if applicable). |
LEDs | |||
|---|---|---|---|
LED | Color | Meaning | |
RUN* | green | This LED indicates the terminal's operating state (if more than one RUN LED is present, all of them have the same function): | |
off | State of the EtherCAT State Machine: INIT = initialization of the terminal or BOOTSTRAP = function for firmware updates of the terminal | ||
flashing | State of the EtherCAT State Machine: PREOP = function for mailbox communication and different standard-settings set | ||
single flash | State of the EtherCAT State Machine: SAFEOP = verification of the Sync Manager channels and the distributed clocks. | ||
on | State of the EtherCAT State Machine: OP = normal operating state; mailbox and process data communication is possible | ||
*) If several RUN LEDs are present, all of them have the same function | |||