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TQ10X User Guide
LVD Installation Instructions
For more information about the Low Voltage Directive (LVD), see 73/23/EEC
and 93/68/EEC, published by the European Economic Community (EEC).
Environmental Conditions
Pollution Degree
The TQ10X Drive is designed for pollution degree 2.
Installation Category
The TQ10X Drive is designed for installation category II.
Electrical
Connecting and Disconnecting Power Mains
The TQ10X Drive’s protective earth connection is provided through its make first/
break last earth terminal on the power mains connector. You must reliably earth
the TQ10X Drive’s protective earth connection.
Attach or remove the TQ10X Drive’s power plug only while input power is OFF.
Using an Isolation Transformer
The TQ10X Drive’s mains voltage is limited to 120 VAC nominal. If your mains
voltage is higher, use an isolation transformer located between the power mains
and the TQ10X Drive. Your isolation transformer should be insulated to ~2300V
rms.
Do not interrupt the protective earth conductor between the source mains and the
isolation transformer’s secondary. The core of the isolation transformer and the
drive’s protective conductor terminal must both be connected to the main’s
protective earth conductor.
CAUTION
Do not use an autotransformer.
Line Fuses
Line fuses need to be added to protect the transformer and associated wiring. If
the live wire cannot be readily identified, fuse both phase conductors. The value
of fuse required is given by:
(1.5 x VA)/(supply volts) [amps]
Fuse types should be anti-surge HBC.
Providing a Protective Earth Connection for Motors
You must provide a connection from the motor to a reliable protective earth
contact point. This connection provides a protective earth for the motor, and is in
addition to the earth connection provided by the drain wire in the motor’s power
cable. The motor’s protective earth connection is important for safety reasons, and
must not be omitted.
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