Yaskawa Z1000 AC Drive HVAC - Manual (Page 97)

3.13 Wiring Checklist
No. Item Page(s)
Drive, Peripherals, Option Cards
1 Check drive model number to ensure receipt of correct model. 25
2 Make sure you have the correct braking resistors, DC link chokes, noise filters, and other peripheral devices. –
3 Check the option card model number. –
Installation Area and Physical Setup
4 Ensure that the area surrounding the drive complies with specifications. 38
Power Supply Voltage, Output Voltage
5 The voltage from the power supply should be within the input voltage specification range of the drive. 128
6 The voltage rating for the motor should match the drive output specifications.
25
307
7 Verify that the drive is properly sized to run the motor.
Main Circuit Wiring
8 Confirm proper branch circuit protection as specified by national and local codes. 70
9 Properly wire the power supply to drive terminals R/L1, S/L2, and T/L3. 73
10
Properly wire the drive and motor together.
The motor lines and drive output terminals U/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.
84
11 Use 600 Vac vinyl-sheathed wire for the power supply and motor lines. 81
12
Use the correct wire gauges for the main circuit. Refer to Main Circuit Wire Gauges and Tightening Torque on page
81 .
• 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
formula to calculate the amount of voltage drop:
Line drop voltage (V) = 3 × wire resistance (Ω/km) × wire length (m) × current (A) × 10
-3
• If the cable between the drive and motor exceeds 50 m, adjust the carrier frequency set to C6-02 accordingly.
81
84
13 Properly ground the drive. Review page 84 . 84
14
Tighten control circuit and grounding terminal screws. Refer to Main Circuit Wire Gauges and Tightening Torque on
page 81 .
81
15
Set up overload protection circuits when running multiple motors from a single drive.
M1
OL1
OL2
OLn
MC1
MC2
MCn
M2
Mn
Drive
MC1 - MCn
OL 1 - OL n
... magnetic contactor
... thermal relay
Power supply
Note: Close MC1 – MCn before operating the drive. MC1 – MCn cannot be switched off during run.
–
16
Install a magnetic contactor when using a dynamic braking option. Properly install the resistor and ensure that overload
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. –
Control Circuit Wiring
18 Use twisted-pair line for all drive control circuit wiring. 89
19 Ground the shields of shielded wiring to the GND terminal. 89
20 For 3-Wire sequence, set parameters for multi-function contact input terminals S1 – S7, and wire control circuits. –
21 Properly wire any option cards. 89
22 Check for any other wiring mistakes. Only use a multimeter to check wiring. –
23
Properly fasten drive control circuit terminal screws. Refer to Main Circuit Wire Gauges and Tightening Torque on
page 81 .
81
24 Pick up all wire clippings. –
25 Ensure that no frayed wires on the terminal block are touching other terminals or connections. –
26 Properly separate control circuit wiring and main circuit wiring. –
3.13 Wiring Checklist
YASKAWA ELECTRIC TOEP YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual 97
3
Electrical Installation