Aventics PROFINET-IO, Operating Instructions Manual

Page: 98 / 348

Commissioning and Operation
98 AVENTICS | PROFINET-IO | R412015162–BDL–001–AE
6.3 Test, diagnosis, and error messages
on the modules
6.3.1 Reading the diagnostic display on
the bus coupler
The LEDs on the front panel of the bus coupler show the
messages from Table 21.
O
Before commissioning and during operation, regularly check
bus coupler functions by reading the diagnostic displays.
Table 21: Definitions for diagnostic LEDs on the bus coupler
LED Signal Description
UL/DIA Green UL logic supply, OK; no overload
Red
W
Valve driver overload, message for the channels
W
Module error
W
System error (see Table 23 on page 101)
W
SREG short circuit
Off No U
L
logic supply
UQ1
1) 4)
1)
Load supply U
Q1
:
– available (U
Q1
> threshold)
– Undervoltage (12 V < U
Q1
< threshold)
– Not available (U
Q1
< 12 V)
Green Load supply U
Q1
available
Red Diagnosis: Undervoltage
Off Load supply U
Q1
not available (e.g. emergency OFF)
UQ2
2) 3) 4)
2)
Load supply U
Q2
:
– available (U
Q2
> threshold)
– Undervoltage (12 V < U
Q2
< threshold)
– Not available (U
Q2
< 12 V)
3)
In the CMS-B-BPIO_32-7/8" version, LED U
Q2
does not light up.
4)
The switching point (voltage) for the U
Q1
and U
Q2
LEDs cannot be changed.
Green Load supply U
Q2
available
Red Diagnosis: Undervoltage
Off Load supply U
Q2
not available (e.g. emergency OFF)
BF Red Bus error
LNK/ACT 1 Yellow Active data exchange with network
Green Port connection to PROFINET-IO network active
LNK/ACT 2 Yellow Active data exchange with network
Green Port connection to PROFINET-IO network active