Toshiba V Series Manual page 153

SPI06 module internal circuitry and breakdown diagnasis area
PI1(+)
PI1( - )
PI4(+)
PI4( - )
External
(24 DCV)
power
(0 V)
suppy
AMP
Trans-
former
insula-
tion
circuit
External power
supply monitoring
(Module connector)
System power
supply (24 Vdc)
SPI06 (PRM)
4)
AMP
Trans-
former
insula-
tion
circuit
External power
supply monitoring
(Module connector)
System power
supply (24 Vdc)
SPI06 (SCD)
4)
2)
Status
Internal
indicator/
CPU circuit
switch
Countter
Internal powe
supply
RS-485 RS-485
Fixed voltage
trans- trans-
power supply
ceiver ceiver
circuit
Phase A Phase B
Redundant
Dual I/O bus
switching
status signal
2)
Status
Internal
indicator/
CPU circuit
switch
Countter
Internal powe
supply
RS-485 RS-485
Fixed voltage
trans- trans-
power supply
ceiver ceiver
circuit
Phase A Phase B
Redundant
Dual I/O bus
switching
status signal
5. PI/O Module
1)
3)
4)
1)
3)
4)
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