Rockwell Automation SA3100 Distributed Power System Drv Config,Program - Manual (Page 58)

3-20 SA3100 Drive Configuration and Programming
Drive Control Register (Continued) 100/1100
Bridge Test Enable Bit 2
The Bridge Test Enable bit is set to begin
the bridge test procedure. Hex Value: 0004H
Sug. Var. Name: BRG_TST@
Access: Read/Write
UDC Error Code: N/A
LED: N/A
The bridge test turns on individual or sets of power devices in the Power Module in
order to verify the gate cable connections and power device operation. The value in
the Bridge Test Code register (105/1105) is used to select which power devices to
turn on.
This test is normally performed at the factory and should not have to be performed
again unless the power devices are replaced. Refer to the SA3100 Diagnostics,
Troubleshooting, and Start-Up Guidelines instruction manual (S-3059) for further
information on performing the bridge test.
!
ATTENTION: The motor must be disconnected before this test is run.
Failure to observe this precaution could result in damage to, or
destruction of, the equipment.
Bus Enable Bit 4
The Bus Enable bit is set to request the PMI
Regulator to close the pre-charge contactor. Hex Value: 0010H
Sug. Var. Name: BUS_ENA@
Access: Read/Write
UDC Error Code: N/A
LED: N/A
When bus voltage is greater than the value in the undervoltage threshold tunable
variable (UVT_E0%) and has reached a steady state, and feedback indicates that
the pre-charge contactor has closed, the PMI Regulator will set bit 4 of register
200/1200 (DC Bus Ready). Refer to the SA3100 Power Modules instruction manual
(S-3058) for more information about internal DC bus control.
DC Braking On Bit 5
The application task sets the DC Braking On
bit to cause the drive to apply DC current
injection braking. The magnitude of the DC
current is controlled by register 108/1108
(BRK_REF%). Hex Value: 0020H
Sug. Var. Name: BRK_ON@
Access: Read/Write
UDC Error Code: N/A
LED: N/A