Troubleshooting; General Remarks; Operating Status Leds; Led (1) - Fronius InterBus 2 MB Bedienungsanleitung

Troubleshooting

General remarks

Operating status
LEDs
Fig. 3 Interbus 2MB PCB
(1) „+5 V" LED
(2) „Traffic 1 - 4" LEDs
(3) „L1 - L7" LEDs
(4) „EXT" LED
„+5 V" LED (1) The „+5 V" LED (1) comes on when the internal or external power supply is connected.
The „+5 V" LED indicates that the board electronics are OK.
„Traffic 1 - 4"
LED
LEDs (2)
Traffic X
Traffic X
CAUTION! Risk of damage if connecting/disconnecting the bus terminals
when they are live. Disconnect the power supply before connecting/discon-
necting the bus terminals.
(7)
(6)
(5)
(4)
Indicator
Off or on
Flashing
(8)
(5) „EXT" jumper
(6) „INT" jumper
(7) „INT" LED
(8) „VCC" LED
Meaning
No communication
on Fronius LocalNet
Communication on the
Fronius LocalNet is active
6
(1)
(2)
(3)
Remedy
Check supply voltage;
Check cabling
-