Diagnostics
LED status displays
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Lenze · Decentralised frequency inverter 8400 motec (AS-Interface option) · EDS84DMOTASI EN 5.0 - 02/2019
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10
Diagnostics
For diagnosing troubled AS-i communication, LEDs can be mounted to the Communication Unit.
The LEDs, in conjunction with a transparent cover, can be procured from Lenze.
Moreover, the current bus status can be queried via code
and the internal communication
status can be queried via code
.
10.1
LED status displays
E84DG057
LED statuses for slave 1 and slave 2
Description
Green LEDs
Red LEDs
Off
Off
There is no AS-i voltage.
On
Off
Everything is alright
• AS-i communication is possible.
Off
On
The slave is switched off; data exchange with the
master is not possible.
On
On
"No data exchange"
• The Data_Exchange_Disable flag is set; data
exchange with the master is not possible.
• The IC is waiting for a "Write Parameter Request".
• The communication monitoring reports "No data
exchange" or the IC has been reset via "Watchdog
IC Reset".
Blinking (2 Hz)
On
"No data exchange"
• The slave is waiting for address assignment by the
master.
• Data exchange with the master is not possible.
Blinking (2 Hz)
Blinking (2 Hz)
Peripheral error
• A signal indicating a peripheral error is pending at
the FID input.
• The LEDs are blinking alternately.
On
Blinking (2 Hz)
Fatal peripheral error with reset
• Data sampling pulse = LOW for more than 44
μ
s