Hitachi SJ700-2 Monitor Mode, Output frequency monitoring, Output current monitoring

Related code

d004: Process variable (PV), PID feedback monitoring

A071: PID Function Enable

A075: PV scale conversion

d003: Rotation direction monitoring

Related code d002: Output current monitoring

Related code

d001: Output frequency monitoring

Chapter 4 Explanation of Functions

4.1 Monitor Mode

4.1.1 Output frequency monitoring

When the output frequency monitoring function (d001) is selected, the inverter displays the output frequency. The inverter displays "0.00" when the frequency output is stopped.

The Hz monitor lamp lights up while the inverter is displaying the output frequency. (Display)

0.00to 99.99 in steps of 0.01 Hz

100.0to 400.0 in steps of 0.1 Hz

Note: When you have selected the digital operator as the device to input frequency-setting commands (A001=02), you can change the output frequency setting by using the △and/or ▽ key (only while the inverter is operating the motor).

-The change in output frequency made in this mode can be reflected in the frequency setting (function "F001"). Press the STR key to write the new frequency over the currently selected frequency setting.

-You cannot change the output frequency while the PID function is enabled or the inverter is not operating the motor.

4.1.2 Output current monitoring

When the output current monitoring function (d002) is selected, the inverter displays the output current. The inverter displays "0.0" when the current output is stopped.

The A monitor lamp lights up while the inverter is displaying the output current.

(Display)

0.0 to 999.9 in steps of 0.1 A

4.1.3 Rotation direction monitoring

Related code

When the rotation direction monitoring function (d003) is selected, the inverter displays the motor operation direction.

The RUN lamp lights up while the inverter is operating the motor (in forward or reverse direction). (Display)

F:Forward operation o: Motor stopped

r: Reverse operation

4.1.4 Process variable (PV), PID feedback monitoring

When "01" (enabling PID operation) or "02" (enabling inverted-data output) has been specified for function "A071" (PID Function Enable) and the process variable (PV), PID feedback monitoring function (d004) is selected, the inverter displays the PID feedback data.

You can also convert the PID feedback to gain data by setting a PV scale conversion (with function "A075").

Value displayed by function "d004" = "feedback quantity" (%) x " PV scale conversion (A075)"

The PV scale conversion can be set (by function "A075") within the range 0.01 to 99.99 in steps of 0.01. (Display)

0.00to 99.99 in steps of 0.01

100.0to 999.9 in steps of 0.1

1000. to 9999. in steps of 1 ⎡100 to ⎡999 in units of 10

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