YASKAWA Z1000U Series Quick Start Manual page 43

Drive Main Circuit Input Power
Supply
ON
ON
OFF
OFF
UL and CE Compliance
External Power Supply
Use a Class 2 power supply as defined by UL standards for the customer-supplied power supply connection to the 24 V Control
Power Supply Unit.
n 24 V Control Power Supply Unit Specifications
Input Operating Voltage
Consumption Power
<1> Use a Class 2 power supply with a capacity of 24 V to comply with UL standards.
u
Wiring Checklist
No.
1 Check drive model number to ensure receipt of correct model.
2 Make sure you have the correct 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.
9 Properly wire the power supply to drive terminals R/L1, S/L2, and T/L3.
Properly wire the drive and motor together.
10 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.
Use 600 Vac vinyl-sheathed wire for the power supply and motor lines. Wire gauge recommendations based on using
11
75 °C (167 °F), 600 Vac vinyl-sheathed wire.
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) =
• 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.
14 Tighten control circuit and grounding terminal screws.
YASKAWA ELECTRIC TOEP C710636 11E Z1000U HVAC MATRIX Drive Quick Start Guide
Table i.22 Power Supply and Control Circuit
Power from 24 V Control Power
Supply Unit
ON
OFF
ON
OFF
Table i.23 24 V Control Power Supply Unit Specifications
Item
Input Current
Compliance
Drive, Peripherals, Option Cards
Installation Area and Physical Setup
Power Supply Voltage, Output Voltage
3
× wire resistance (Ω/km) × wire length (m) × current (A) × 10
Control Circuit Operation in
Drive
Operating
Stopping
Item
Main Circuit Wiring
i.4 Electrical Installation
Drive Operation
Not possible
Not possible
Specifications
24 Vdc ± 20% (19.2 V to 28.8 V)
1.9 A
38 W
<1>
UL , CE
-3
Possible
Possible
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