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Rockwell Automation SA500 Drive Configuration and Programming User Manual

Page 60

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3-28

SA500 Drive Configuration and Programming

Drive Status Register (Continued)

200/1200

Torque Loop Reference in Positive Saturation

Bit 11

The PMI sets this bit if it detects that the
torque loop reference signal is in positive
saturation.

Hex Value:

4000H

Sug. Var. Name:

TRF_SP@

Access:

Read only

UDC Error Code: N/A
LED:

N/A

Torque Loop Reference in Negative Saturation

Bit 12

The PMI sets this bit if it detects that the
torque loop reference signal is in negative
(minus) saturation.

Hex Value:

4000H

Sug. Var. Name:

TRF_SM@

Access:

Read only

UDC Error Code: N/A
LED:

N/A

CCLK Synchronized

Bit 14

The PMI sets the CCLK Synchronized
status bit when CCLK in the UDC module is
synchronized with CCLK in the PMI
Regulator.

Hex Value:

4000H

Sug. Var. Name:

CCLK_OK@

Access:

Read only

UDC Error Code: N/A
LED:

N/A

This bit is equal to zero if CCLK is not turned on in the AutoMax rack or if there have
been two consecutive instances when CCLK is not synchronized after the
application task has turned CCLK on. In this case, the feedback data from the PMI is
not current.

This bit should normally be used only in the start permissive logic for the drive
(which must be true only once to start the drive). It does not have to be used in the
run permissive logic for the drive (which must be true during the entire execution of
the task. Note, however, that applications that require very tight synchronization
between the UDC module and the PMI (e.g., positioning applications) may require
the use of this bit in the run permissive logic.

Refer to the Communication Lost Fault bit description (register 202/1202, bit 15) for
more information.

PMI Operating System Loaded

Bit 15

The PMI Regulator sets the PMI Operating
System Loaded status bit when the
operating system has been successfully
downloaded from the UDC module to the
PMI Regulator after power-up.

Hex Value:

8000H

Sug. Var. Name:

PMI_OK@

Access:

Read only

UDC Error Code: N/A
LED:

N/A