No Response Occurs - Hitachi WJ200 Series Instruction Manual
Wj200 series single-phase input 200v class three-phase input 200v class three-phase input 400v class
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Also See for WJ200 Series:
- Quick reference manual (131 pages) ,
- Instruction manual (30 pages) ,
- Installation manual (20 pages)
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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
• When broadcast message received.
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.
B−9
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Troubleshooting
