Rockwell Automation SA3100 Distributed Power System Drv Config,Program User Manual

Page 85

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Configuring the UDC Module’s Registers

3-47

Revolutions Per Minute Register

217/1217

The Revolutions Per Minute register contains the speed of the motor
in RPM. A positive number in this register indicates a forward
direction; a negative number indicates a reverse direction.

Sug. Var. Name:

RPM%

Units:

RPM

Range:

N/A

Access:

Read only

Note that this register is not intended for closed loop control.

Slip Feedback Register (Vector)

218/1218

In Vector mode, register 218/1218 functions as the Slip Feedback
register. This register displays the amount of rotor slip. The displayed
value is equal to Hertz times 100. For example, 5 Hz would be
displayed as 500.

Sug. Var. Name:

SLIP_FB%

Units:

Hz

100

Range:

N/A

Access:

Read only

Carrier Frequency Register (V/Hz)

218/1218

In Volts per Hertz mode, register 218/1218 functions as the Carrier
Frequency register. This register contains the drive’s present carrier
frequency. The value is scaled in kHz

10.

Sug. Var. Name:

CARR_FB%

Units:

kHz

10

Range:

N/A

Access:

Read only

Selected Variable Register

219/1219

The Selected Variable register contains the value of the variable that
is selected for display on PMI meter port 4.

Sug. Var. Name:

SEL_VAR%

Units:

N/A

Range:

N/A

Access:

Read only

This register provides monitoring of data in the UDC module that is normally only available within the PMI
regulator. Refer to chapter 2 for more information on displaying variables on the PMI Regulator’s meter
ports.

(Unused)

220/1220

Reserved for future use

Sug. Var. Name:
Units:
Range:
Access:

(Unused)

221/1221

Reserved for future use

Sug. Var. Name:
Units:
Range:
Access:

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