Diagnostics and troubleshooting
Leuze electronic GmbH + Co. KG
BCL 300
i
\ BCL 301
i
109
12
Diagnostics and troubleshooting
12.1 General causes of errors
12.2 Interface errors
Error
Possible error cause
Measures
Status LED PWR
Off
• No supply voltage connected to the
device
• Hardware error
Check supply voltage
Send device to customer service
Red, flashing
• Warning
Query diagnostic data and carry out
the resulting measures
Red, continuous
light
• Error: no function possible
Internal device error, send in device
Orange, continu
-
ous light
• Device in service mode
Reset service mode with webConfig
tool
Status LED NET
Off
• No supply voltage connected to the
device
• Hardware error
Check supply voltage
Send device to customer service
Red, flashing
• Communication error
• With slave: network error
• With master: network error following
initialization
Check interface
Check interface, addressing and el.
connection of the slave
Check interface, addressing and el.
connection of the slave
Red, continuous
light
• No communication
• Incorrect wiring
• Incorrect address
Check interface
Check wiring
Check addressing
Orange, flashing
• Timeout -> Error on interface
Check interface wiring
Table 12.1:
General causes of errors
Error
Possible error cause
Measures
No communication
via USB service
interface
• Incorrect interconnection cable
• Connected BCL 300
i
\ BCL 301
i
is not
recognized
Check interconnection cable
Install USB driver
No communication
via RS 232 /
RS 422/ RS 485
• Incorrect wiring
• Different baud rates
• Different protocol settings
Check wiring
Check baud rate
Check protocol settings
Sporadic errors on
the RS 232 /
RS 422 / RS 485
interface
• Incorrect wiring
• Effects due to EMC
• Overall network expansion exceeded
Check wiring
•In particular, check wire shielding
•Check the cable used
Check shielding (shield covering in
place up to the clamping point)
Check grounding concept and connec
-
tion to functional earth (FE)
Avoid EMC coupling caused by power
cables laid parallel to device lines.
Check max. network expansion as a
function of the max. cable lengths
Table 12.2:
Interface error
