B–9

SJ200 Inverter

No response occurs:

In the cases below, the inverter ignores a query and returns no response.

When receiving a broadcasting query

When detecting a transmission error in reception of a query

When the slave address set in the query is not equal to the slave address of the inverter

When a time interval between data elements constituting a message is shorter than 3.5 characters

When the data length of the query is invalid

NOTE: Provide a timer in the master and make the master retransmit the same query

when no response is made within a preset time period after the preceding query was sent. AppendixB