Visual feedback of EI7. built-in encoders
The EI7. encoders use 2 duo LEDs (red + green in each case) to provide visual feedback on the operating state.

[1] | Plug connector |
[2] | Duo LED - H1 |
[3] | Duo LED - H2 |
LED H1 – Status and fault
The green LED indicates the status or the configuration of the encoder. It is designed to be flashing. The flashing frequency indicates the set number of periods.
LED H1 green | |
|---|---|
Flash code | Status/configuration |
LED off | Encoder de-energized or defective |
0.6 Hz | EI71 (1 period per revolution) |
1.2 Hz | EI72 (2 periods per revolution) |
3 Hz | EI76 (6 periods per revolution) |
15 Hz | EI7C (24 periods per revolution) |
LED continuously on | Defective encoder |
Faults detected by the encoder activate the red LED.
LED H1 red | |
|---|---|
Flash code | Meaning |
10 s with 1 Hz and 2 s continuously | No valid period number can be set |
Miscellaneous | Output driver reports an fault (e.g. due to short circuit, overtemperature) |
LED H2 - Signal track state
LED color | Track A | Track B | Track /A | Track /B |
|---|---|---|---|---|
Orange (green and red) | 0 | 0 | 1 | 1 |
Red | 0 | 1 | 1 | 0 |
Green | 1 | 0 | 0 | 1 |
Off | 1 | 1 | 0 | 0 |
