8 Electrical Installation
YASKAWA TOEPC71061752B GA500 Drive Installation & Primary Operation 35
*2 When you install a DC link choke, you must remove the jumper between terminals +1 and +2.
*3 When you use a regenerative converter or regenerative unit, set L8-55 = 0 [Internal DB TransistorProtection =
Disable]. If L8-55 = 1 [Protection Enabled], the drive will detect rF [Braking Resistor Fault].
*4 When you use a regenerative converter, regenerative unit, braking resistor, or braking resistor unit, set L3-04 = 0
[Stall Prevention during Decel = Disabled]. If L3-04 = 1 [General Purpose], the drive could possibly not stop in
the specified deceleration time.
*5 When you use an ERF-type braking resistor, set L8-01 = 1 [3% ERF DB Resistor Protection = Enabled] and set a
wiring sequence to de-energize the drive with the MFDO.
*6 Cooling fan wiring is not necessary for self-cooling motors.
*7 Connect peripheral options to terminals -, +1, +2, B1, and B2.
WARNING
Fire Hazard. Only connect factory-recommended devices or circuits to drive
terminals B1, B2, -, +1, and +2. Do not connect an AC power supply lines to these terminals. Incorrect
wiring can cause damage to the drive and serious injury or death from fire.
*8 Connect a 24 V power supply to terminals PS-AC to operate the control circuit while the main circuit power supply
is OFF.
*9 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 terminals SC-SP and terminals SC-SN, 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 terminals SC-SP and terminals SC-SN, 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 terminals SC-SP and terminals SC-SN, 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.
*10 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.
*11 DIP switch S1 sets terminal A2 for voltage or current input. The default setting for S1 is current input (“I” side).
*12 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.
*13 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.
*14 Set DIP switch S2 to “ON” to enable the termination resistor in the last drive in a MEMOBUS/Modbus network.
*15 Use only Sourcing Mode for Safe Disable input.
*16 Use multi-function analog monitor outputs with analog frequency meters, ammeters, voltmeters, and wattmeters.
Do not use monitor outputs with feedback-type signal devices.
*17 Jumper S5 sets terminal AM for voltage or current output. The default setting for S5 is voltage output (“V” side).
*18 Disconnect the wire jumpers between H1 and HC and H2 and HC to use the Safe Disable input.
◆ Main Circuit Terminal Block Wiring Procedure
DANGER
Electrical Shock Hazard. Do not examine, connect, or disconnect wiring on an energized
drive. Before servicing, disconnect all power to the equipment and wait for the time specified on the warning label
at a minimum. The internal capacitor stays charged after the drive is de-energized. The charge indicator LED
extinguishes when the DC bus voltage decreases below 50 Vdc. When all indicators are OFF, measure for
dangerous voltages to make sure that the drive is safe. If you do work on the drive when it is energized, it will
cause serious injury or death from electrical shock.
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