Hitachi SJ300 Setup Instructions page 3

1. Scope
1.1. The scope of this document is to provide a step-by-step procedure for setting up a
SJ300 for closed loop vector control (electronic gearing).
2. Parts
2.1. SJ300-XXXXFU– quantity 2
2.2. DOP-PRO (optional) – quantity 1
2.3. SJ-FB – quantity 2
2.4. 5 vdc quadrature differential encoder – quantity 2
2.5. Drive rated motor – quantity 2
3. Tools
3.1. Flat blade screwdriver
3.2. Philips screwdriver
3.3. Diagonal cutters
3.4. Wire strippers
4. Reference material
4.1. NB613X Hitachi SJ300 manual
4.2. NB616X Hitachi SJ-FB manual
4.3. NEC article 430
4.4. Nation Electrical Installation Standards (NEIS)
4.5. NEMA ICS 2.3
4.6. EASA Understanding Energy Efficient Motors
5. Definitions
5.1. Vector control – the magnitude and phase of the ac motor's stator current vector
is to be controlled by producing constant magnetic flux while generating the
necessary component of torque producing current.
5.2. Closed loop vector control – vector control using an external feedback device
like an encoder or resolver.
5.3. Open loop control – Any control that does not use a feedback device.
5.4. Velocity – accurate speed regulation through closed loop vector control.
5.5. Electronic Gearing – Master drive controlling slave drive(s) through feedback
loop.
6. Hardware set-up (performed on both master and slave drives)
6.1. Power-up testing procedure should have been performed prior to SJ-FB set-up
reference SJ300 manual page 2-17.
6.2. Gain access to inside front cover of SJ300 following directions on page 9 of SJ-
FB manual.
6.3. Install encoder cable following channel pin-out to terminal one of SJ-FB board.
6.3.1. Pay attention to the torque of the terminals to ensure proper installation.
6.4. The closed loop vector set-up does not require any additional configuration of the
SJ-FB including dipswitches and wiring at this time in the set-up process.
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