9 Electrical Installation
YASKAWA TOEPC71061723A YASKAWA AC Drive CR700 Quick Start Guide 25
*1 Set the wiring sequence to de-energize the drive with the fault relay output.
*2 When you install a DC reactor, you must remove the jumper between terminals +1 and +2.
*3 Models 2088 to 2415 and 4045 to 4605 have a DC reactor.
*4 When you use a regenerative converter, regenerative unit, or braking unit, set L8-55 = 0 [Internal DB TransistorProtection =
Disable]. the drive will detect rF [Braking Resistor Fault].
*5 When you use a regenerative converter, regenerative unit, braking unit, braking resistor, or braking resistor unit, set L3-04 = 0 [Stall
Prevention during Decel = Disabled]. If L3-04 ≠ 0, the drive could possibly not stop in the specified deceleration time.
*6 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 fault relay output.
*7 When you connect a braking unit (CDBR series) or a braking resistor unit (LKEB series) to drive models 2088, 2115, and 4091,
make sure that you use wires that are in the range of the applicable gauges for the drive. A junction terminal is necessary to connect
wires that are less than the applicable gauge to the drive. Contact Yaskawa or your nearest sales representative for more information
about selection and installation of the junction terminal.
*8 Connect peripheral options to terminals -, +1, +2, B1, and B2.
NOTICE
When you use the drive with a non-grounding, high-resistance grounding, or asymmetric-grounding
network, put the EMC Filter screw or screws in the OFF position to disable the built-in EMC filter. Failure to obey the
instructions can damage the drive.
*9 Set a wiring sequence to de-energize the drive with the fault relay output.
*10 Cooling fan wiring is not necessary for self-cooling motors.
*11 Encoder circuit wiring (wiring to PG-B3 option) is not necessary for applications that do not use motor speed feedback.
*12 Connect a 24 V power supply to terminals PS-AC to operate the control circuit while the main circuit power supply is OFF.
*13 Set up the wiring to rotate the motor forward (FWD) it hoists a load, and reverse (REV) when it lowers a load in all control methods.
*14 When the external baseblock command is ON, the drive releases the baseblock.
*15 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.
Do not close the circuit between terminals SC-SN. If you connect the wires to the incorrect terminals, it will cause damage to the
drive.
• Sourcing Mode, Internal power supply: Install the jumper to close the circuit between terminals SC-SN.
Do not close the circuit between terminals SC-SP. If you connect the wires to the incorrect terminals, 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.
*16 The maximum output current capacity for terminals＋ V and -Von the control circuit is 20 mA.
NOTICE
Do not install a jumper between terminals +V, -V, and AC. A closed circuit between these terminals will
cause damage to the drive.
*17 DIP switch S1 sets terminal A2 for voltage or current input. The default setting for S1 is current input (“I” side).
*18 DIP switch S4 sets terminal A3 for analog or PTC input.
*19 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.
*20 Use multi-function analog monitor outputs with analog frequency meters, ammeters, voltmeters, and wattmeters. Do not use monitor
outputs with feedback-type signal devices.
*21 Set DIP switch S2 to the ON position to enable the termination resistor in the last drive when you use MEMOBUS/Modbus
communications.
*22 To use the internal power supply with the Safe Disable input, use sourcing mode.
*23 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, remove the covers before measuring 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.
The procedures to wire the main circuit terminal block are different for different drive models. Refer to Table 9.1
for more information.
EN
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