Wiring Checklist; Wiring Checklist - YASKAWA A1000 Technical Manual

3.10 Wiring Checklist

No.
1 Check drive model number to ensure receipt of correct model.
2 Make sure you have the correct braking resistors, DC reactors, noise filters, and other peripheral devices.
3 Check the option card model number.
4 Ensure that the area surrounding the drive complies with specifications.
5 The voltage from the power supply should be within the input voltage specification range of the drive.
6 The voltage rating for the motor should match the drive output specifications.
7 Verify that the drive is properly sized to run the motor.
8 Confirm proper branch circuit protection as specified by national and local codes.
Properly wire the power supply to drive terminals R/L1, S/L2, and T/L3.
Note: Confirm the following when wiring models CIMR-Ao4A0930 and 4A1200:
9
Properly wire the drive and motor together.
10 The motor lines and drive output terminals R/T1, V/T2, and W/T3 should match in order to produce the desired phase
order. If the phase order is incorrect, the drive will rotate in the opposite direction.
11 Use 600 Vac vinyl-sheathed wire for the power supply and motor lines.
Use the correct wire gauges for the main circuit.
• Consider the amount of voltage drop when selecting wire gauges. Increase the wire gauge when the voltage drop is
greater than 2% of motor rated voltage. Ensure the wire gauge is suitable for the terminal block. Use the following
12
formula to calculate the amount of voltage drop:
Line drop voltage (V) = 3 × wire resistance (Ω/km) × wire length (m) × current (A) × 10
• If the cable between the drive and motor exceeds 50 m, adjust the carrier frequency set to C6-02 accordingly.
13 Properly ground the drive. Review page 59.
14 Tighten control circuit and grounding terminal screws.
Set up overload protection circuits when running multiple motors from a single drive.
15
Note: Close MC1 – MCn before operating the drive. MC1 – MCn cannot be switched off during run.
Install a magnetic contactor when using a dynamic braking option. Properly install the resistor and ensure that overload
16
protection shuts off the power supply using the magnetic contactor.
17 Verify phase advancing capacitors, input noise filters, or GFCIs are NOT installed on the output side of the drive.
18 Use twisted-pair line for all drive control circuit wiring.
19 Ground the shields of shielded wiring to the GND
20 For 3-Wire sequence, set parameters for multi-function contact input terminals S1 – S8, and wire control circuits.
21 Properly wire any option cards.
22 Check for any other wiring mistakes. Only use a multimeter to check wiring.
23 Properly fasten drive control circuit terminal screws.
24 Pick up all wire clippings.
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Drive, Peripherals, Option Cards
Installation Area and Physical Setup
Power Supply Voltage, Output Voltage
Main Circuit Wiring
• Remove the jumpers shorting terminals R/L1-R1/L11, S/L2-S1/L21, and T/L3-T1/L31 when operating
with 12-phase rectification.
• When operating without 12-phase rectification, properly wire terminals R1/L11, S1/L21, and T1/L31 in
addition to terminals R/L1, S/L2, and T/L3.
Power supply
Drive
Control Circuit Wiring
Item
Refer to Wire Gauges and Tightening Torque on page
Refer to Wire Gauges and Tightening Torque on page
MC1 OL1
M1
MC2 OL2
MC1 - MCn ... magnetic contactor
M2
OL 1 - OL n ... thermal relay
MCn OLn
Mn
terminal.
Refer to Wire Gauges and Tightening Torque on page

3.10 Wiring Checklist

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