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

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4 HMI Bypass Controller Installation and Commissioning Guide
Safety and Precautions
1. Read this manual in its entirety before installing or operating the HMI
bypass package. This manual applies to HMI bypass packages with the
Nidec Control Techniques HVAC Drive H300 variable frequency drive.
2. Do not connect or disconnect wiring, or perform signal checks while the
power supply is turned ON.
3. The internal capacitor of the installed drive may be charged even after the
power supply has been turned OFF. To prevent electrical shock, disconnect
all power before servicing the HMI bypass. Wait at least 10 minutes
after the power supply has been disconnected and all LEDs have been
extinguished.
4. Do not perform a voltage withstand test on the HMI bypass or the
installed drive. This electronic equipment uses semiconductors and is
vulnerable to high voltage. Severe damage to the equipment may occur.
5. The HMI bypass is suitable for use on a circuit capable of delivering not
more than 100,000 RMS symmetrical Amperes, 240 volts maximum (230
Volt class units), 480 Volts maximum (460 Volt Class units), 600 Volts
maximum (575 Volt Class units).
6. Static sensitive printed circuit boards are installed in the HMI bypass
package. Damage may occur due to Electrostatic Discharge (ESD). DO NOT
handle any components without following proper ESD precautions.
Failure to observe these and other precautions highlighted in this manual
will expose the user to high voltages, resulting in equipment damage, serious
injury or death.
The information contained within this document is proprietary to Nidec
Control Techniques and may not be copied, reproduced or transmitted
to other parties without the expressed written consent of Nidec Control
Techniques.
No patent liability is assumed with respect to the use of information
contained herein. Moreover, because Nidec Control Techniques is constantly
improving its high quality products, the information contained in the manual
is subject to change without notice. Every precaution has been taken in
the preparation of the manual. Nevertheless, the manufacturer assumes no
responsibility for errors or omissions. Neither is liability assumed for damages
resulting from the use of the information contained in this publication.
WARNING