GCU08AA-130 Datasheet, PDF (5/7 Pages) Powerex Power Semiconductors – GATE COMMUTATED TURN-OFF THYRISTOR UNIT HIGH POWER INVERTER USE

Note 4.
1. Status signal from LED
(1) Status signal
Status of GCT
On state
Off state
LED 1
(Red)
OFF
ON
MITSUBISHI GATE COMMUTATED TURN-OFF THYRISTOR UNIT
GCU08AA-130
HIGH POWER INVERTER USE
PRESS PACK TYPE
LED 2
(Yellow)
ON
OFF
(2) Fault signal
Status
Normal
Fault
Fault
Fault
G-K
Normal
Normal
G-K short
G-K short
PS
20±1V
Voltage down
20±1V
Voltage down
PS LED
(LED 4)
On
Off, V < 17.5V (Typ.)
On
Off, V < 17.5V (Typ.)
G-K LED
(LED 3)
On
Off (If V > 12.5V (Typ.) then LED 3 is on)
Off
Off
2. Status signal from Transmitter (Note 5)
(1) Normal operation
Control signal
(Control board)
Control signal
(GDU input)
L
NL
L
NL
Status signal
(GDU output)
L
NL
(3) Fault signal (G-K short)
Control signal
(Control board)
Control signal
(GDU input)
Status signal
(GDU output)
NL
NL
L
Normal
L
L
NL
Fault
Note 5. About over voltage fault signal, please see Fig. 8.
(L : Light NL : No light)
(2) Fault signal (O/V or U/V)
Control signal
(Control board)
Control signal
(GDU input)
Status signal
(GDU output)
L
NL
L
NL
L
L
NL
Normal
Fault
(3) Fault signal (fiber optic)
Control signal
(Control board)
L
NL
Control signal
(GDU input)
NL
L
Status signal
(GDU output)
(Always No light)
(Always light)
Mar. 2001