PROFIBUS Power Hub Segment Coupler 3 (SK3)
Troubleshooting
2
016-
10
59
11
Troubleshooting
This chapter helps you to solve problems that may occur in connections with commissioning or
operating your Power Hub.
11.1
Faults Indicated via LEDs
Note!
First Checks in Case of Problems
In case a fault occurs, first ensure that the field wiring is complete, properly terminated, and that
all field spurs are properly attached. Also check if the gateway module(s) and the power
modules are properly plugged into the connection slots of the respective motherboards.
Symptom
Possible cause
Remedy
LED "PWR" is off
■
No power.
■
Gateway defective.
■
Check power supply.
■
Restart gateway.
If problem persists, send
gateway to Fuchs.
LED "DP/ERR" is flashing red
■
No data transmission on
DP side.
■
Master problem.
■
Gateway defective.
■
Check cables.
■
Check termination.
■
Check master.
■
Restart gateway.
If problem persists, send
gateway to Fuchs.
LED "DP/ERR" lights up
constantly red
Hardware error.
Restart gateway.
If problem persists, send
gateway to Fuchs.
LED "Red." (Redundancy) is
flashing yellow
Redundancy not available.
Reasons:
■
Synchronization in
progress.
■
Second gateway module is
missing on a redundant
board.
■
Backup gateway is
defective.
■
Not a fault. Wait a few
seconds.
■
Plug in second gateway
module.
■
Send gateway to
Fuchs.
If problem persists, send
gateway to Fuchs.
LED "Red." is off
■
Gateway module is
plugged into simplex
motherboard.
■
Only 1 gateway module is
plugged into redundant
motherboard.
■
Redundant board is used
and LED "Red." lights up
constantly yellow at
primary gateway.
■
Use redundant
motherboard.
■
Not a fault.
■
Not a fault. Gateway is
backup device.
