ABB ACS2000 AFE 1MVA User Manual page 161

161 ACS2000 AFE 1MVA UM 3BHS297030 ZAB E01 REV. J
Modbus RTU interface
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References
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10-7 Modbus RTU
interface
LED
XMIT Flashing
REC Flashing
ERROR Flashing
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Table 10-3 Modbus RTU LED description
LED Error indication
XMIT, REC, ERROR On
REC, ERROR On
ERROR On
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10-7
2
3
4
1. Bus-cable terminals
2. Fiber-optic connectors for communication cable to the drive
- TXD = transmitter
- RXD = receiver
3. Status LEDs
4. Switch for bus termination
Meaning
Interface transmits a response or an exception
Interface receives a command from the Modbus network
If the received command has a parity error, or
if the received command has a CRC error, or
if the received command is not supported by the interface, or
if the interface has detected an error
Meaning
ROM checksum test failed
RAM test failed
DDCS-ASIC-register-access test failed
1