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Z1000u bypass quick start procedure, Check motor rotation direction – Yaskawa Z1000U HVAC Matrix Bypass User Manual

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YASKAWA TOEP YAIZ1D01A Z1000U Matrix Bypass Quick Start Procedure

Z1000U Bypass
Quick Start Procedure

Page 22

of 37

9.1 Verify proper motor rotation direction using the HOA keypad.

The motor must operate in the same rotation direction during both drive and bypass operation to prevent equipment damage. These
steps are necessary to confi gure motor rotation prior to placing the Bypass into service.

Step

HOA Key Press

Description

HOA Display/Result

9.1.1

2x

CHECK Motor Rotation (DRIVE)
Press the ESC key multiple times to return the the Home screen and
operation mode.

9.1. 2

Press HAND to give the drive a Run command from HAND

mode. The HAND LED will light and the motor will rotate at the value set to
parameter Z1-09 (10 Hz default).

9.1. 3

Ensure the motor is rotating in the correct direction and that no faults or
alarms occur.

Press OFF.

The HAND light turns OFF and the motor coasts to stop.

Proceed to STEP 9.1.5 Check Motor Rotation (BYPASS), if motor
rotation using DRIVE is correct.

Otherwise, proceed to STEP 9.1.4 if motor rotation in DRIVE is NOT
correct.

Check Motor Rotation Direction

9

STEP