Diagnostics; Diagnostic Leds; Fig. 16 Kl9050 - Leds - Beckhoff KL9020 Documentation

Diagnostics

4 Diagnostics
4.1

Diagnostic LEDs

Coupler Terminal (KL9050)
Fig. 16: KL9050 - LEDs
Diagnostic LEDs for power supply
LED Function
Power V Indicates whether the supply voltage for the electronics
k
(green) of the Coupler Terminal is switched on.
Power Indicates whether the supply voltage for the I/O termi-
(green) nals of the terminal block is switched on. The power
supply of the terminals is via the power contacts.
Diagnostic LEDs on the RJ45 socket for the incoming K-Bus extension (K-Bus IN)
LED RUN (green) LED ERR (red)
on off
off on
off off
End Terminal with RJ45 socket (KL9020)
The End Terminal KL9020 has no separate diagnostic LEDs. For diagnosing the K-bus of your bus terminal
block, the diagnostic LEDs I/O RUN and I/O ERR of the Fieldbus Coupler installed there are used.
26
Meaning
Data transmission on the K-
bus extension is active
Data transmission on the K-
bus extension is interrupted
Data transmission on the K-
bus extension is interrupted
Version: 2.1.0
Display Meaning
on Supply voltage present
off Power supply has failed or is switched off
on Supply voltage present
off Power supply has failed or is switched off
Possible causes
• Supply voltage present
• Connection established properly
• Ethernet cable not connected
• Wire breakage or short-circuit in the Ethernet cable
• RJ45 plug has been pulled out
• Function Switch [} 16] of a KL9050 not set correctly
• Supply voltage for the electronics in the coupler terminal
has failed
• Coupler terminal defective
KL9020, KL9050