Hitachi SJ300-037HFE 사용자 설명서

SJ300 Inverter

Motor C

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The SJ–FB Encoder Feedback Board installs in 
the inverter’s expansion bay, which can accept 
up to two expansion cards. The encoder card 
accepts two-channel incremental encoder 
signals. Position feedback is essential for certain 
torque-control algorithms, and is useful for 
improving low-speed performance. The card can 
also generate linear acceleration/deceleration 
ramps for velocity control.

All wiring associated with this card connects to 
its PWB connectors as shown. Some related 
signals may be assigned to the intelligent I/O 
terminals, as described in Chapter 4. For more 
information, refer to the SJ–FB manual.

The SJ–DG Digital Input Card installs in the 
inverter’s expansion bay. This card accepts up to 
eight digital input signals, in addition to the intel-
ligent inputs on the inverter’s control terminal 
connector. All wiring associated with card 
connects to its PWB connectors as shown.

The SJ–DN DeviceNet Interface Card (not shown) installs in the inverter’s expansion bay. It 
connects directly to a DeviceNet network. Inverter parameters P044 to P049 configure the card. 
Only one DeviceNet card may be installed in an inverter. For more information, please refer to 
the DeviceNet Expansion Card Instruction Manual.

PWB connector 

to external wiring 

PWB connector 

to external wiring