Hitachi SJ300 Setup Instructions page 5

Closed loop vector control electronic gearing (master/slave)

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8.3. Slave set-up.

8.3.1. Parameter changes.

P012

C001-C008 (any single address)

A001

8.3.2. Switches must be installed for the 3 smart terminals assigned to 46, 47,

and 48.

8.3.2.1. STAT pulse train input valid is the on/off switch that tells the slave to

accept the pulse train from the master source.

8.3.2.2.PCLR pulse train clears the register that holds the count value of

pulses accumulated from the master source.

8.3.2.3.LAC (LAD cancel) this switch eliminates the acceleration and

deceleration time of the slave drive (be very cautious with this

function).

8.4. Electronic gearing fine-tuning.

8.4.1. The initial set-up is for straight 1 to 1 gear ratio.

8.4.1.1.The parameters P020 and P021 allow the user to adjust the ratio to

accommodate the requirements that the process dictates.

8.4.2. The slave gear is a little off adjustment for speed matching.

8.4.2.1.Adjust P022 and P023 for fine tuned speed adjustments.

9. Tips

9.1. When using DOP-PRO and getting "com" errors periodically, instead of cycling

power to the drive, try selecting online monitor. Once online monitor is

established, exit and try to upload/download again.

9.2. If the hertz display (D001) shows increasing hertz, but the motor does not move,

try the following tips:

9.2.1. Cycle power to drive and resume run test.

9.2.2. Connect to Trend on the DOP-PRO software.

9.2.2.1.You may get an E11 alarm, clear and resume run test.

9.2.3. Conduct a second auto-tune and ensure H002 is set to 01 or 02.

01 – APR mode (position)

48 – STAT pulse train input valid

47 – PCLR position deviation clear

46 – LAC LAD cancel

04 – pulse speed reference