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

Page 81

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Configuring the UDC Module’s Registers

3-43

Interlock Register (Continued)

205/1205

RPI Missing

Bit 2

The RPI Missing bit is set if the Run
Permissive input on the Resolver & Drive
I/O board is not on.

Hex Value:

0004H

Sug. Var. Name:

IC_RPI@

Access:

Read only

UDC Error Code:

N/A

LED:

N/A

Faults Need Reset

Bit 3

The Faults Need Reset bit is set if previous
faults (register 202/1202) have not been
cleared.

Hex Value:

0008H

Sug. Var. Name:

IC_FLT@

Access:

Read only

UDC Error Code:

N/A

LED:

N/A

Rising Edge Required

Bit 4

The Rising Edge Required bit is set if a
rising edge is not detected on a command
bit in register 100/1100.

Hex Value:

0010H

Sug. Var. Name:

IC_RISE@

Access:

Read only

UDC Error Code:

N/A

LED:

N/A

This interlock bit will be set if the application task has set the Fault Reset bit (register
100/1100, bit 8) but has not cleared and then re-enabled any command bits.

More Than One Request

Bit 5

The More Than One Request bit is set if
more than one operating mode is requested
at a time in register 100/1100 (bits 0, 1, 2).

Hex Value:

0020H

Sug. Var. Name:

IC_MORE@

Access:

Read only

UDC Error Code:

N/A

LED:

N/A

Bus Not Ready

Bit 6

The Bus Not Ready bit is set when turning
on the drive if the DC bus is not ready.

Hex Value:

0040H

Sug. Var. Name:

IC_BUS@

Access:

Read only

UDC Error Code:

N/A

LED:

N/A

The bus is ready when the DC bus voltage is greater than the undervoltage
threshold value stored in local tunable UVT_E0% and has reached a steady state,
and feedback indicates that the pre-charge contactor has closed.

This interlock bit will also be set when turning on the drive if the bus enable bit
(register 100/1100, bit 4) has not been set. Refer to the SA3100 Power Modules
instruction manual (S-3058) for more information about internal DC bus control.

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