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

Page 64

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SA3100 Drive Configuration and Programming

Bridge Test Code Register

105/1105

The value written to the Bridge Test Code register determines which
power device to turn on during the bridge test.

Sug. Var. Name:

TST_CODE%

Units:

N/A

Range:

N/A

Access:

Read/Write

The six least significant bits correspond to the six power devices:

Bit 0

U Upper Power Device

Bit 1

V Upper Power Device

Bit 2

W Upper Power Device

Bit 3

U Lower Power Device

Bit 4

V Lower Power Device

Bit 5

W Lower Power Device

Patterns that turn on the same device in the upper and lower bridge are not accepted, and no device will be
turned on. Bit 4 in the Drive Warning register (203/1203) is set if an illegal pattern is used.

When a value of -1 is entered in this register, the test will cycle through each power device individually in the
following order: U-, U+, V-, V+, W-, W+.

Refer to the SA3100 Diagnostics, Troubleshooting, and Start-Up Guidelines (S-3059) for more information
about the bridge test.

PMI D/A Output Register

106/1106

The value in the PMI D/A Output Register can be displayed on one of
the four PMI Regulator meter ports. See section 3.6.2.

Sug. Var. Name:

PMI_DA%

Units:

See below

Range:

See below

Access:

Read/Write

This register can contain any variable in the AutoMax system as long as it is a 16-bit integer. Double-integer
or floating point values cannot be displayed on the PMI Regulator’s D/A meter ports. The desired value must
be copied into this register by an application task. The value in the register is transmitted to the PMI
Regulator at the end of every scan.

Synchronous Transfer Volts Register*

107/1107

*Reserved for future use.

The Synchronous Transfer Volts register is used during a
synchronous transfer to hold the value of the external voltage source.
The value is scaled in volts.

Sug. Var. Name:

SA_V%

Units:

Volts

Range:

N/A

Access:

Read/Write

DC Braking Reference Register

108/1108

The value in the DC Braking Reference register regulates the
magnitude of braking current that is output when the BRK_ON@
signal (register 100, bit 5) is asserted.

Sug. Var. Name:

BRK_REF%

Units:

Amps

10

Range:

Motor rated amps

Access:

Read/Write

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