20
8903/PB Profibus Communications Interface
Appendix A : Troubleshooting
890 Profibus TechCard Status LED
Table 1
Colour
LED Indication
Description
OFF
OFF
Drive is not powered or fault
RED
ON
Drive is not initialised or fault
RED/OFF
75% RED
Diasabled. The Node Address has been set to zero.
RED/OFF
50% RED
Baud Search. PLC not connected or halted.
RED/OFF
25% RED
Waiting Parameterisation or waiting Configuration.
Either the 890 is not being addressed by the PLC
or the 890 is rejecting the Parameterisation or
Configuration.
GREEN/OFF
75% GREEN
Data Exchange with watchdog (response
monitoring) enabled. No errors.
GREEN/OFF
50% GREEN
Data Exchange with watchdog (response
monitoring) disabled.
RED/GREEN
25% RED
75% GREEN
Data Exchange with watchdog (response
monitoring) enabled. Errors detected, e.g. values
from PLC out-of-range.
RED/GREEN
50% RED
50% GREEN
Data Exchange with watchdog (response
monitoring) disabled. Errors detected, e.g. values
from PLC out-of-range.
Table 2
NETWORK STATES
0
MISSING OR FAULT
No power, not fitted or fault
1
DISABLED
Option disabled. Address set to 0
2
BAUD SEARCH
Baud search. Waiting for communications
on Profibus. To allow auto baud.
3
WAIT PARAM
Waiting for valid parameterisation message
to be sent to this node.
4
WAIT CONFIG
Waiting for valid parameterisation message
to be sent to this node.
5
DATA EXCHANGE
Data Exchanging with watchdog (response
monitoring) enabled
6
DATA EXCH NO WD
Data Exchanging with watchdog (response
monitoring) disabled
7
DATA EXCH ERROR
Data Exchanging with watchdog (response
monitoring) enabled with errors.
8
DATA EX ER NO WD
Data Exchanging with watchdog (response
monitoring) disabled with errors.
