Main Circuit Terminal Functions - YASKAWA T103 Installation & Primary Operation

Ac drive for industrial applications

Table of Contents

Set the wiring sequence to de-energize the drive with the fault relay output. If the drive outputs a fault during fault restart when you use

the fault restart function, set L5-02 = 1 [Fault Contact at Restart Select = Always Active] to de-energize the drive. Be careful when you

use a cut-off sequence. The default setting for L5-02 is 0 [Active Only when Not Restarting].

When you use a braking unit, set L8-55 = 0 [Internal DB TransistorProtection = Disable]. If L8-55 = 1 [Protection Enabled], the drive

will detect rF [Braking Resistor Fault].

When you use a braking 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.

When you connect a braking unit (CDBR series) to drive models T140 and T168, 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.

Cooling fan wiring is not necessary for self-cooling motors.

The number of terminals is different for different models.

• Terminals U/T1, V/T2, W/T3: There are 2 screws for each terminal on models T477 to T720.

• Terminals +3 and -: There are 2 screws for this terminal on models T477 to T720.

Connect peripheral options to terminals - and +3.

WARNING

Fire Hazard. Only connect factory-recommended devices or circuits to drive terminals - and +3. Do not

connect AC power supply lines to these terminals. Incorrect wiring can cause damage to the drive and serious injury or death

from fire.

Encoder circuit wiring (wiring to PG-B3 option) is not necessary for applications that do not use motor speed feedback.

Connect a 24 V power supply to terminals PS-AC to operate the control circuit while the main circuit power supply is OFF.

*10 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.

*11 The maximum output current capacity for terminals +V and -V on 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.

*12 DIP switches S1-1 to S1-3 set terminals A1 to A3 for voltage or current input. The default setting for S1-1 and S1-3 is voltage input ("V"

side). The default setting for S1-2 is current input ("I" side).

*13 DIP switch S4 sets terminal A3 for analog or PTC input. Set DIP switch S1-3 to the "V" side, and set H3-05 = 0 [Terminal A3 Signal

Level Select = 0 to 10V (Lower Limit at 0)] to set terminal A3 for PTC input with DIP switch S4.

*14 Do not ground the control circuit terminals AC or connect them to the drive.

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.

*15 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.

*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 switch S5 sets terminal FM and AM for voltage or current output. The default setting for S5 is voltage output ("V" side).

*18 Set DIP switch S2 to "ON" to enable the termination resistor in the last drive in a MEMOBUS/Modbus network.

*19 Use only SOURCE Mode for Safe Disable input.

*20 Disconnect the jumper between H1 and HC and H2 and HC to use the Safe Disable input.

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