Usr Led; Evaluating Power Supply Status; Table 69: Power Supply Status Diagnostics - Solution In Event Of Error - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-882 Media Redundancy ETHERNET Controller
11.1.2.1

USR LED

The bottom indicator LED ("USR") is provided for visual output of information.
Control of the LED from the application program is conducted using the functions
from the WAGO-I/O-PRO library "Visual.lib".
11.1.3

Evaluating Power Supply Status

The power supply unit of the device has two green LEDs that indicate the
status of the power supplies.
LED "A" indicates the 24 V supply of the fieldbus coupler.
LED "B" or "C" reports the power available on the power jumper contacts
for field side power.
Table 69: Power Supply Status Diagnostics – Solution in Event of Error
LED Status
A
Green
Off
B or C
Green
Off
Meaning
Operating voltage for the system is
available.
No power is available for the system
The operating voltage for power jumper
contacts is available.
No operating voltage is available for the
power jumper contacts.
Diagnostics 205
Solution
-
Check the power supply for the system
(24 V and 0 V).
-
Check the power supply for the power
jumper contacts (24 V and 0 V).
Manual
1.5.0