Rockwell Automation 20G PowerFlex 750-Series AC Drives User Manual

Page 138

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138

Rockwell Automation Publication 750-RM002B-EN-P - September 2013

Chapter 2

Feedback and I/O

For the PowerFlex 750-Series drives utilizing an Option Module, the table below
shows an overview of the selectable configurations for the drive’s Digital Output
“Level Sel” parameters.

Parameter No.

Parameter Name

Description

1

Output Frequency

Output frequency present at terminals T1, T2, and T3 (U, V & W).

2

Commanded
SpdRef

Value of the active Speed/Frequency Reference.

3

Mtr Vel Fdbk

Estimated or actual motor speed, with feedback.

4

Commanded Trq

Final torque reference value after limits and filtering are applied. Percent
of motor rated

5

Torque Cur Fdbk

Based on the motor, the amount of current that is in phase with the
fundamental voltage component.

6

Flux Cur Fdbk

Amount of current that is out of phase with the fundamental voltage
component.

7

Output Current

The total output current present at terminals T1, T2, and T3 (U, V & W).

8

Output Voltage

Output voltage present at terminals T1, T2, and T3 (U, V & W).

9

Output Power

Output power present at terminals T1, T2, and T3 (U, V & W).

10

Output Powr Fctr

Output power factor.

11

DC Bus Volts

DC bus voltage.

13

Elapsed MWH

Accumulated output energy of the drive.

14

Elapsed kWH

Accumulated output energy of the drive.

260

(1)

(1) PowerFlex 753 drives only.

Anlg In0 Value

Value of the Analog input after filter, square root, and loss action.

418

Mtr OL Counts

Accumulated percentage of motor overload.

419

Mtr OL Trip Time

Displays the inverse of the motor overload time.

558

MOP Reference

Value of the MOP (Motor Operated Potentiometer) Reference to be used as
a possible source for P545 and P550.

707

Load Estimate

Displays an estimated load torque value for the drive.

940

Drive OL Count

Indicates power unit overload (IT) in percentage.

943

Drive Temp Pct

Indicates operating temperature of the drive power section (heat sink) in
percentage of the maximum heat sink temperature.

1090

PID Ref Meter

Present value of the PI reference signal.

1091

PID Fdbk Meter

Present value of the PI feedback signal.

1092

PID Error Meter

Present value of the PI error.

1093

PID Output Meter

Present value of the PI output.

1567

(2)

(2) PowerFlex 755 drives only.

FrctnComp Out

Displays the torque reference output of the Friction Compensation
function.

50

(3)(4)

(3) Option modules can be used in Ports 4, 5, and 6 of PowerFlex 753 drives.
(4) Option modules can be used in Ports 4, 5, 6, 7, and 8 of PowerFlex 755 drives.

Anlg In0 Value

Value of the Analog input after filter, square root, and loss action.

60

(3)(4)

Anlg In1 Value

Value of the Analog input after filter, square root, and loss action.

90 … 97

(5)

(5) Port 14: DeviceLogix software parameters

DLX Real Out SP1 -
SP8

Eight 32-bit Real scratchpad registers for DLX program output use.

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