LEDs

Run

1

green

This LED indicates the terminal’s operating state:

off

State of the EtherCAT State Machine: INIT = initialization of the terminal

flashing

State of the EtherCAT State Machine: PREOP = function for mailbox communication and different default settings are applied

single flash

State of the EtherCAT State Machine: SAFEOP = verification of the Sync Manager channels and the distributed clocks.
Outputs remain in safe state

on

State of the EtherCAT State Machine: OP = normal operating state;
mailbox and process data communication is possible

flickering

State of the EtherCAT State Machine: BOOTSTRAP = Function for
Firmware updates of the terminal

Ch. 1 A

2

green, red

green: Indicates TRUE level.

red: Indicates wire break at the respective input. Diagnosis is only possible if the following three conditions are met.

• The corresponding input is differentially wired. Corresponds to:
  “Counter mode” 0x8001:1D = 0 (“Encoder RS422 (diff. input)”)
  or
  “Counter mode” 0x8001:1D = 1 (“Counter RS422 (diff. input)”)
• “Error detection” for the respective input is enabled:
  “Error detection A” 0x8000:0B = TRUE
  “Error detection B” 0x8000:0C = TRUE
  “Error detection C” 0x8000:0D = TRUE
• The differential voltage V_{ID Low} is typically less than 0.67 V (subject to change).

Ch. 1 B

3

Ch. 1 C / Ch. 2 A

4

Ch. 2 B

5

Ch. 1 DI

5

green, red

Alarm input from encoder. Input is internally connected to 5 V via a pull-up resistor. The encoder output must actively pull the signal against GND.

green

Output active at the encoder, a fault message is present at the encoder

red

Output not active at the encoder; no fault message is present

Latch

7

green

Lights up if a signal (+24 V) is connected to the latch input

Enc. supply

9

green

Operating voltage display for incremental encoder power supply

Diag

10

red

Initialization process active or state of the EtherCAT State Machine: BOOT

Gate

15

green

Lights up if a signal (+24 V) is connected to the gate input