SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
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Chapter 4 Explanation of Functions<br />
4.1 Monitor Mode<br />
4.1.1 Output frequency monitoring<br />
Related code<br />
When the output frequency monitoring function (d001) is selected, the d001: Output frequency monitoring<br />
inverter displays the output frequency. The inverter displays "0.00" when<br />
the frequency output is stopped.<br />
The Hz monitor lamp lights up while the inverter is displaying the output frequency.<br />
(Display)<br />
0.00 to 99.99 in steps of 0.01 Hz<br />
100.0 to 400.0 in steps of 0.1 Hz<br />
Note: When you have selected the digital operator as the device to input frequency-setting commands<br />
(A001=02), you can change the output frequency setting by using the △and/or ▽ key (only while<br />
the inverter is operating the motor).<br />
- The change in output frequency made in this mode can be reflected in the frequency setting<br />
(function "F001"). Press the STR key to write the new frequency over the currently selected<br />
frequency setting.<br />
- You cannot change the output frequency while the PID function is enabled or the inverter is not<br />
operating the motor.<br />
4.1.2 Output current monitoring<br />
Related code<br />
When the output current monitoring function (d002) is selected, the<br />
d002: Output current monitoring<br />
inverter displays the output current. The inverter displays "0.0" when the<br />
current output is stopped.<br />
The A monitor lamp lights up while the inverter is displaying the output current.<br />
(Display)<br />
0.0 to 999.9 in steps of 0.1 A<br />
4.1.3 Rotation direction monitoring<br />
Related code<br />
When the rotation direction monitoring function (d003) is selected, the d003: Rotation direction monitoring<br />
inverter displays the motor operation direction.<br />
The RUN lamp lights up while the inverter is operating the motor (in forward or reverse direction).<br />
(Display)<br />
F: Forward operation<br />
o: Motor stopped<br />
r: Reverse operation<br />
4.1.4 Process variable (PV), PID feedback monitoring<br />
When "01" (enabling PID operation) or "02" (enabling inverted-data<br />
output) has been specified for function "A071" (PID Function Enable) and<br />
the process variable (PV), PID feedback monitoring function (d004) is<br />
selected, the inverter displays the PID feedback data.<br />
Related code<br />
d004: Process variable (PV), PID<br />
feedback monitoring<br />
A071: PID Function Enable<br />
A075: PV scale conversion<br />
You can also convert the PID feedback to gain data by setting a PV scale conversion (with function<br />
"A075").<br />
Value displayed by function "d004" = "feedback quantity" (%) x " PV scale conversion (A075)"<br />
The PV scale conversion can be set (by function "A075") within the range 0.01 to 99.99 in steps of 0.01.<br />
(Display)<br />
0.00 to 99.99 in steps of 0.01<br />
100.0 to 999.9 in steps of 0.1<br />
1000. to 9999. in steps of 1<br />
⎡100 to ⎡999 in units of 10<br />
4 - 1
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