Rockwell Automation SA3100 Distributed Power System Drv Config,Program User Manual
Page 64

3-26
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