YASKAWA GA800 Technical Reference page 117

*3 When you use an external 24 V power supply, the operation of the MFDO terminals are different for different drive software versions.
Note:
The "PRG" column on the nameplate on the right side of the drive identifies the software version. You can also use U1-25 [SoftwareNumber
FLASH] to identify the software version.
• Drive software versions PRG: 09012 and later
When the main circuit power supply of the drive turns off, and you remove the cause of a fault and do a fault reset from the keypad, the
fault relay output terminals and the MFDO terminals set for H2-xx = E, 10E [Fault] will change status.
• Drive software versions PRG: 09011 and earlier
When the main circuit power supply of the drive turns off, and you remove the cause of a fault and do a fault reset from the keypad, the
fault relay output terminals and the MFDO terminals set for H2-xx = E, 10E [Fault] will keep the same status as before the main circuit
power supply of the drive turned off, but the fault code shown on the keypad will disappear.
*4 If the motor shaft can rotate while the 24 V control power supply is energized and the main circuit power supply is de-energized, re-
energize the 24 V control power supply and energize the main circuit power supply.
*5 When you use an external 24 V power supply, the operation of the Analog Output option is different for different drive software versions.
On drives with software versions PRG:09015 and later, the Analog Output option (AO-A3) can output the analog signals.
Note:
The "PRG" column on the nameplate on the right side of the drive identifies the software version. You can also use U1-25 [SoftwareNumber
FLASH] to identify the software version.
When you use an external 24 V power supply, if you de-energize the main circuit power supply, the encoder option
will not operate, even when you connect the external 24 V power supply to terminals PS-AC. When you use an
encoder option, energize the drive main circuit power supply.
Note:
Yaskawa recommends that you use different external power supplies for the external power supply input terminals (PS-AC) and MFDI
selection common terminal (SC) / Input signal common terminal (SC).
Wiring MFDI Terminals
If you de-energize the main circuit power supply, the MFDI terminals will not operate, even when you connect the
external 24 V power supply to terminals PS-AC. When you set N.O. functions to H1-xx [MFDI Function Select],
MFDI terminals always deactivate. When you set N.C. functions, MFDI terminals always activate. Connect the
external 24 V power supply to the MFDI selection common terminal (SC).
A - External power supply
Wiring Digital Input Option (DI-A3)
If you de-energize the main circuit power supply, the Digital Input Option terminals will not operate, even when you
connect the external 24 V power supply to terminals PS-AC. When you set N.O. functions to F3-xx [Terminal Dx
Function Selection], the input terminals on the digital input option always deactivate. When you set N.C. functions,
the input terminals on the digital input option always activate. Connect the external 24 V power supply to the Input
signal common terminal (SC).
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
Figure 3.48 Wiring MFDI Terminals
3.5 Control Circuit Wiring
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