Hitachi SJ700-2 Actual-frequency monitoring, Torque command monitoring, Torque bias monitoring

Related code

d014: Power monitoring

Related code d013: Output voltage monitoring

Chapter 4 Explanation of Functions

4.1.8 Actual-frequency monitoring

The actual-frequency monitoring function is effective only when a motor equipped with an encoder is connected to the inverter and the feedback option board (SJ-FB) is mounted in the inverter. When the actual-frequency monitoring function (d008) is selected, the inverter displays the actual operating frequency of the motor (regardless of the motor control method (A044 or A244)).

Related code

d008: Actual-frequency monitoring

P011: Encoder pulse-per-revolution (PPR) setting

H004: Motor poles setting, 1st motor

H204: Motor poles setting, 2nd motor

(Display)

Forward operation:

0.00to 99.99 in steps of 0.01 Hz

100.0to 400.0 in steps of 0.1 Hz

Reverse operation:

-0.0 to -99.9 in steps of 0.1 Hz

-100 to -400 in steps of 1 Hz

Note: To use this monitoring function, set the encoder pulse-per-revolution (PPR) setting (P011) and the number of motor poles (H004 or H204) correctly.

4.1.9 Torque command monitoring	Related code
The torque command monitoring function is effective when you have	d009: Torque command	monitoring
	P033: Torque command input selection
selected control by torque for the vector control with sensor. When the	P034: Torque command setting
torque command monitoring function (d009) is selected, the inverter	A044: V/f characteristic curve selectcion
displays the value of the currently input torque command.	C001 to C008: Terminal [1] to [8]

The % monitor lamp lights up while the inverter is displaying the torque command value. Assign 52 (ATR) on intelligent input terminal and turn on to activate torque control.

(Display)

0. to 200. in steps of 1 %

4.1.10 Torque bias monitoring		Related code
The torque bias monitoring function is effective when you have selected	d010: Torque bias monitoring
	A044: V/f characteristic curve selectcion
the vector control with sensor. When the torque bias monitoring function
	P036: Torque bias mode
(d010) is selected, the inverter displays the value of the currently set	P037: Torque bias value
value of torque bias.	P038: Torque bias polarity
The % monitor lamp lights up while the inverter is displaying the torque bias value.
(Display)
-150. to +150. in steps of 1 %
4.1.11 Torque monitoring		Related code
When the torque monitoring function (d012) is selected, the inverter	d012: Torque monitoring
displays the estimated value of the torque output from the inverter.	A044: V/f characteristic curve selectcion

The % monitor lamp lights up while the inverter is displaying the estimated output torque.

(Display)

-300. to +300. in steps of 1 %

Note: This monitoring function is effective only when you have selected the sensorless vector control, 0Hz-range sensorless vector control, or vector control with sensor as the control mode.

Displayed value is not accurate when the other control method is selected.

4.1.12 Output voltage monitoring

When the output voltage monitoring function (d013) is selected, the inverter displays the voltage output from the inverter.

The V monitor lamp lights up while the inverter is displaying the output voltage.

(Display)

0.0 to 600.0 in steps of 0.1 V

(remark) Displayed value may not be accurate when the output voltage is differ from input voltage.

4.1.13 Power monitoring

When the power monitoring function (d014) is selected, the inverter displays the electric power (momentary value) input to the inverter.

The kW monitor lamps (V and A lamps) light up while the inverter is displaying the input power.

(Display)

0.0 to 999.9 in steps of 0.1 kW

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