Mechanical & Electrical Installation
2
2.14 Control Circuit Wiring
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual 105
*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: 01020 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: 01019 and earlier
When the main circuit power supply of the drive turns off, 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. The fault code shown on the keypad will disappear.
*4 If you connect a drive with software version PRG: 01019 or earlier to an encoder option, the drive detects a fault. Drives with
software versions PRG: 01020 and later do not detect a fault.
• If you connect external 24 V power to terminal PS-AC while the main circuit power supply of the drive is OFF, the drive detects
oPE06 [Control Method Selection Error].
• If you de-energize the drive main circuit power supply and re-energize it under these conditions, the drive detects oPE06 [Control
Method Selection Error].
– The drive main circuit power supply is energized
– There is an external 24 V power supply connected to terminals PS-AC.
*5 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.
*6 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:01021 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
Figure 2.107 Wiring MFDI Terminals
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).
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