Hitachi SJ Series User Manual page 211

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• Shown below are the multi-speed table for binary

operation (when [Ab-03] = 00) and that for bit

operation (when [Ab-03] = 01).

Table for binary operation

Input terminal function 003 [CF1] to 006 [CF4]

Exemplar operation

3rd speed [Ab-13], 4th speed [Ab-14]

Acceleration or

deceleration

Example (1) If the multi-speed 3rd speed is engaged

and the revolution is accelerating, the

enabled acceleration time is the

multi-speed 3rd speed acceleration time

If the set frequency is the same, only the acceleration or deceleration time can be changed.

acceleration

2nd speed 3rd speed 2nd speed 4th speed 3rd speed 1st speed

Table for bit operation

[Ab-03] = 01; Input terminal function 007 [SF1] to

deceleration

acceleration

Example (2) If the multi-speed 1st speed is engaged

and the revolution is decelerating, the

enabled deceleration time is the

multi-speed 3rd speed deceleration time

[AC-40] for the multi-speed 3rd speed

that has been engaged until the

multi-speed 1st speed is engaged.

Inverter Function

deceleration

acceleration

deceleration

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