161 ACS2000 AFE 1MVA UM 3BHS297030 ZAB E01 REV. J
Modbus RTU interface
10-7 Modbus RTU
interface
10-7
LED Meaning
XMIT Flashing Interface transmits a response or an exception
REC Flashing Interface receives a command from the Modbus network
ERROR Flashing 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
Table 10-3 Modbus RTU LED description
LED Error indication Meaning
XMIT, REC, ERROR On ROM checksum test failed
REC, ERROR On RAM test failed
ERROR On DDCS-ASIC-register-access test failed
1. Bus-cab
le terminals
2. Fiber-op
tic connectors for commu
nication cable to the drive
-TXD =
transmitter
-RXD =
receiver
3. Status LE
Ds
4. Switch fo
r bus termination
1
2
3
4
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