Hardware Description | Seite
14
2.5. LED outputs (connection via plug connector)
One LED output is provided for each fan. The resistors are
already included in the device. A direct connection simplifies the
commissioning.
The two LED outputs indicate the status of the fans. See table.
LED
LED flashes
LED
lights
up
permanently
LED1
Status FAN1 = OK
(Fan speed 1 is OK)
FAN1 error
Fan speed 1 too low
LED2
Status FAN2 = OK
(Fan speed 2 is OK)
FAN2 error
Fan speed 2 too low
2.6. Switching outputs FAN1_OK and FAN2_OK at plug
connector PWR
The PWR side signals the status of the fan outputs.
OK state
non-OK state
FAN1_OK
= Vin
0V
FAN2_OK
= Vin
0V
