Rockwell Automation 7000A PowerFlex Medium Voltage Drive (A-Frame) - Classic Control - Manual (Page 346)

6-42 Component Definition and Maintenance
7000A-UM150F-EN-P –June 2013 7000 “A” Frame
Test power connection
Fiber optic transmitter
and receiver
Thermal sensing
connection
TP9
TP8
TP7
TP6
TP3
TP4
TP5
Gate and cathode
thyristor connection
LED
Snubber connection
TP1
TP2
Figure 6.34 – Self-Powered Gate Driver Board
Terminal/connections description
TB1-1 – Connection to SCR snubber circuit used to extract energy from
the snubber for SPGDB operation
TB1-2 – Connection to SCR sensing resistor which indicates
conduction status of SCR being operated
TB2-1 – Positive 20V power supply connection to temperature sensor
board. Provides power to temperature sensor board.
TB2-2 – Common connection of positive 20V power supply to
temperature sensor board
TB3-1 – Positive 15V power supply connection for test power used
when commissioning drive or testing SPGDB
TB3-2 – Provides artificial sense voltage signal to allow SPGDB to gate
the SCR when in test mode. When the appropriate test power
cable is used, P/N 81001-262-51, this input is shorted to TB3-1
to obtain the sense voltage.
TB3-3 – Common connection of positive 15V power supply used for
test power
TB4-2 – Cathode connection to SCR being controlled
TB4-1 – Gate connection to SCR being controlled
OP1 – Blue fiber optic cable receptacle – Firing pulse command from
the processor
OT1 – Grey fiber optic cable receptacle – Diagnostic status of the
SCR