Nidec Control Techniques HVAC Drive H300 HMI Bypass, Installation And Commissioning Manual

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42 HMI Bypass Controller Installation and Commissioning Guide
If “NO” then setup the HMI Bypass basic setup is complete and the Setup
Wizard will return to the System Settings screen.
If “YES” the Setup Wizard will continue to the optional PID setup screen.
Optional Step - Onboard PID Controller : If the Onboard PID Controller will be
used, the Setup Wizard will continue to the Advanced I/O Settings, PID Setup,
and PID Setup – Sleep/Wake screens. For further information regarding the
setup of these screens refer to section 4.2.14.
4.3 Checking Motor Rotation
Before attempting a trial operation of the HMI bypass package, ensure that
the enclosure door is securely closed. Also, ensure all personnel are clear of
the connected load as this operation will energize and rotate the motor.
After applying 3 phase power to the HMI bypass package, ensure that
the HMI is illuminated. If any alarms are present, refer to the trip log and
troubleshooting sections.
WARNING
There is no standard for the rotational direction of an induction motor based
on the motor lead markings. This, plus the uncertainty of the phase rotation
of the utility power being applied to the HMI bypass package terminals,
requires that the motor rotation direction be checked and be correct in both
VFD and Bypass Modes. Failure to confirm rotation may cause severe damage
to the HMI bypass package, motor or the driven equipment.
4.3.1 Check #1: Rotation on VFD power
Place the VFD package in Hand (local) Mode control by pressing the VFD
and HAND icons on the HMI bypass touchscreen. The VFD icon will turn
blue indicating that the bypass is in VFD Mode and the HAND icon will be
highlighted indicating that the bypass is in local control. Use the up arrow on
the touchscreen HMI to increase the speed reference of the VFD or the down
arrow on to decrease the speed reference of the VFD.
Note the direction of rotation as the motor shaft begins to rotate as
compared to the required rotation direction.
To stop the VFD/Motor, press the STOP icon on the HMI touchscreen.
4.3.2 Check #2: Rotation on Bypass power
NOTE: This operation will start the motor across the line. Place the HMI
bypass in the Bypass Mode by pressing the BYP icon on the HMI bypass LCD
touchscreen. The BYP icon will be highlighted green indicating the HMI
bypass is in Bypass Mode.