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PCB EXPLANATION
ＭＵＸ-１００ SERVICEMANUAL ５ - ５
5-3 INVERTER UNIT- C1
Function: This PCB equipped with the following circuits controls the power system.
1. IGBT circuit
2. Filament heating circuit
3. Starter circuit
During PCB replacement
Adjust the FVR again, and also confirm TkV.
As well, take care of the DIP switch setting.
Check pin list
CP No. CP Name Description
CP1 CL
CP2 CO
Filament heating voltage
CP3 Gc
CP4 Ec
IGBT gate signal
CP5 Ga
CP6 Ea
IGBT gate signal
CP7 YC Stator coil current detection (1V or more is normal.)
CP8 Gd
CP9 Ed
IGBT gate signal
CP10 Gb IGBT gate signal
CP11 ZC Stator coil current detection (1V or more is normal.)
CP12 Eb IGBT gate signal
CP13 GND GND
Fuse
Fuse Name Description
F1 Provided for protection
Dip SW
SW No. Function
SW1-1 OFF(“MUX-100” side) for MUX 100/100H/100D series
SW1-2 Not used
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