3.2 Standard Connection Diagram
44 YASKAWA SIEPYEULA5001C LA500 Technical Manual
*6 Connect a 24 V power supply to terminals PS-AC to operate the control circuit while the main circuit power supply is OFF.
*7 To set the MFDI power supply (Sinking/Sourcing Mode or internal/external power supply), install or remove a jumper between
terminals SC-SP or SC-SN depending on the application.
NOTICE: Damage to Equipment. Do not close the circuit between terminals SP-SN. If you close the circuits between
terminals SC-SP and terminals SC-SN at the same time, it will cause damage to the drive.
• Sinking Mode, Internal power supply: Install the jumper to close the circuit between terminals SC-SP.
NOTICE: Damage to Equipment. Do not close the circuit between terminals SC-SN. If you close the circuits between
terminals SC-SP and terminals SC-SN at the same time, it will cause damage to the drive.
• Sourcing Mode, Internal power supply: Install the jumper to close the circuit between terminals SC-SN.
NOTICE: Damage to Equipment. Do not close the circuit between terminals SC-SP. If you close the circuits between
terminals SC-SP and terminals SC-SN at the same time, it will cause damage to the drive.
• External power supply: Remove the jumper from the MFDI terminals. It is not necessary to close the circuit between terminals SC-
SP and terminals SC-SN.
*8 The maximum output current capacity for terminal +V on the control circuit is 20 mA.
NOTICE: Damage to Equipment. Do not install a jumper between terminals +V and AC. A closed circuit between these
terminals will cause damage to the drive.
*9 DIP switch S1 sets terminal A2 for voltage or current input. The default setting for S1 is current input (“I” side).
*10 Do not ground the control circuit terminals AC or connect them to the drive chassis.
NOTICE: Do not ground the AC control circuit terminals and only connect the AC terminals according to the product
instructions. If you connect the AC terminals incorrectly, it can cause damage to the drive.
*11 Connect the positive lead from an external 24 Vdc power supply to terminal PS and the negative lead to terminal AC.
NOTICE: Connect terminals PS and AC correctly for the 24 V power supply. If you connect the wires to the incorrect
terminals, it will cause damage to the drive.
*12 Use only Sourcing Mode for Safe Disable input.
*13 Use multi-function analog monitor outputs with analog frequency meters, ammeters, voltmeters, and wattmeters. Do not use monitor
outputs with feedback-type signal devices.
*14 Disconnect the wire jumpers between H1 and HC and H2 and HC to use the Safe Disable input.
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