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Yaskawa J7 Drive User Manual

Page 52

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5-17

Continued

n69

: Modbus Frequency Resolution

Factory setting:

0

Range: 0 to 3

The frequency resolution from the PLC and in the frequency reference and output
frequency monitor (by communication) are selected with this parameter. The output
frequency resolution of the Drive is 0.1 Hz. Even if the Modbus resolution is
changed to 0.01 Hz in

n69

, the value in the hundredths digit of 0.01 Hz of the

received frequency reference is rounded off internally. When 30,000/100% in units
of 0.1% is selected, the value is also rounded off.

n70

: Modbus Slave Address

Factory setting:

0

Range: 0 to 31

Each slave Drive on the same transmission line must be given a unique address.

n71

: Modbus Baud Rate

Factory setting:

2

Range: 0 to 3

Selects the baud rate, as indicated by the following table:

Setting

Baud Rate (BPS)

0

2400

1

4800

2

9600

3

19,200

n72

: Modbus Parity Selection

Factory setting:

2

Range: 0 to 2

Selects the parity, as indicated by the following table:

Setting

Parity

0

Even

1

Odd

2

None

NOTE: To change the values set in

n70

thru

n72

and enable the new

settings, it is necessary to turn OFF power to the Drive, then turn it ON again.

5.14 MODBUS CONTROL