Rockwell Automation 23P PowerFlex DC Stand Alone Regulator and Gate Amplifier - Manual (Page 50)

50 Rockwell Automation Publication 23P-UM001D-EN-P - July 2012
Chapter 3 Gate Amplifier Installation and Wiring
GATE FUSE OK
The “GATE FUSE OK” LED circuit is used to monitor the fuse for the external
power supply. To sense whether the fuse is open, the voltage across the fuse is
monitored. If the fuse is open and the Gate Amplifier is provided with gate firing
pulses, the “GATE FUSE OK” LED will turn off and the Ready Relay will drop
out.
The fuse is internal to the Gate Amplifier and is soldered to the Gate Driver
Output board, it is not replaceable in the field.
GATE POWER
The Gate Power function also picks up the Ready relay. The Ready relay is a
Double Pole Single Throw relay. One set of the Normally Open contacts provides
the power connection for the Gate Power LED and the second pair of Normally
Open contacts provides the Ready relay contacts for the drive control interlocks.
POWERFLEX DC SAR GATE INPUT
Input for the PowerFlex DC Stand Alone Regulator (SAR) gates - includes both
forward and reverse gates at this connector.
Note: The SD3000
PLUS ports cannot be used at the same time as the SAR port.
SD3000 PLUS FWD GATE INPUT
Input for the SD3000
PLUS forward gates. This input is also compatible with the
PMI Rack DC Drive Regulator.
Note: The SAR port cannot be used at the same time as the SD3000
PLUS ports.
SD3000 PLUS REV GATE INPUT
Input for the SD3000
PLUS reverse gates. This input is also compatible with the
PMI Rack DC Drive Regulator.
Note: The SAR port cannot be used at the same time as the SD3000
PLUS ports.