Operating & Mounting instructions – 8 074 143.03/03 – Page 73
Mounting
General Mounting Information
Make sure, that the input voltage is 3 AC 380...480 V ±10 %, 50/60 Hz ±5 %. Ambient factors
such as high temperatures, high humidity, dust, dirt and aggressive gases must be avoided. The
inverter should be installed in a well ventilated place that is protected against direct sunlight. Install
the inverter on a fire-proof, vertical wall that does not transmit vibrations.
Warning! Do not apply mains power to the output terminals U, V, W.
Issue the operating signals START/STOP via the control terminals or the control panel, not by
switching the mains or the motor contactor. Do not install capacitors or surge absorbers in the motor
wires.
Distances from other devices or against the wall
Because of thermal convection, the frequency inverters >pDRIVE< CX are designed for vertical wall
assembly. Especially when installing the inverter in a niche, you must comply with the specified mini-
mum distance from side wall or other equipment. Objects that penetrate the interior of the inverter
can cause damage.
The permissible temperature range ( -10°C to +40°C, +50°C with 2 kHz clock frequency) must not
be undercut or exceeded. The higher the ambient temperature, the shorter the lifetime of the inverter.
Do not install the inverter near heat-radiating equipment.
When installing the inverter in a cubicle, please note the size and heat elimination capacity of the
cubicle. Provide ventilation, if necessary.
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General