Hitachi SJ100DN DeviceNet Series Instruction Manual page 37

36
Operations and Monitoring
Use with DeviceNet operation – When the SJ100DN inverter is under network control,
Run and Stop commands will typically arrive via the DeviceNet network. However, a
network communications interruption is possible at any time. So for safety reasons, it is
important to provide a dedicated Stop signal input as shown below.
Network host Inverter
[STP]
Run/Stop commands
DeviceNet network
In the graph below, the network FWD command places the inverter in Run mode. While
the motor is running, the local [STP] input terminal activates, causing the inverter to
decelerate the motor to a stop. It remains stopped even though the FW command is still
active. The FW command must turn OFF and ON again to resume motor operation.
Output
Frequency
Network FW command
[STP]
t
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