Chapter 7 Explanation Of Functions; Monitoring The Data; Output Frequency Monitoring (D001); Output Current Monitoring (D002) - Hitachi NES1-004SB Quick Reference Manual

7.1 Monitoring the data

7.1.1 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)
0.00 to 99.99 in steps of 0.01 Hz
100.0 to 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) and Data change mode selection (b163=01), 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.
- When use UP/DWN function, please do not use it.
7.1.2 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.
(Display)
0.0 to 655.3 in steps of 0.1 A
7.1.3 Rotation direction monitoring
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
7.1.4 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)
0.00 to 99.99 in steps of 0.01
100.0 to 999.9 in steps of 0.1
1000. to 9999. in steps of 1
1000 to 9999 in steps of 10
100 to 999 in units of 1000

Chapter 7 Explanation of Functions

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