Installation Manual

H-Max Series Adjustable Frequency Drive
H-Max Series Adjustable Frequency Drive MN04008005E—September 2011 www.eaton.com vii
Safety
Definitions and Symbols
WARNING
This symbol indicates high voltage. It calls your
attention to items or operations that could be dangerous
to you and other persons operating this equipment.
Read the message and follow the instructions carefully.
This symbol is the “Safety Alert Symbol.” It occurs with
either of two signal words: CAUTION or WARNING, as
described below.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, can result in serious injury or death.
CAUTION
Indicates a potentially hazardous situation which, if not
avoided, can result in minor to moderate injury, or serious
damage to the product. The situation described in the
CAUTION may, if not avoided, lead to serious results.
Important safety measures are described in CAUTION (as
well as WARNING).
Hazardous High Voltage
WARNING
Motor control equipment and electronic controllers are
connected to hazardous line voltages. When servicing
drives and electronic controllers, there may be exposed
components with housings or protrusions at or above
line potential. Extreme care should be taken to protect
against shock.
Stand on an insulating pad and make it a habit to use only
one hand when checking components. Always work with
another person in case an emergency occurs. Disconnect
power before checking controllers or performing
maintenance. Be sure equipment is properly grounded. Wear
safety glasses whenever working on electronic controllers or
rotating machinery.
Warnings and Cautions
CAUTION
When selecting the cable cross-section, take the voltage
drop under load conditions into account.
The consideration of other standards (for example, VDE 0113
or VDE 0289) is the responsibility of the user.
CAUTION
The specified minimum PE conductor cross-sections
(EN 50178, VDE 0160) must be maintained.
WARNING
With frequency inverters, only AC/DC sensitive residual
current circuit breakers (RCD type B) are to be used
(EN 50178, IEC 755).
CAUTION
Debounced inputs may not be used in the safety circuit
diagram.
Residual current circuit breakers (RCD) are only to be
installed between the AC power supply network and the
frequency inverter.
CAUTION
Debounced inputs may not be used in the safety circuit
diagram.
If you are connecting multiple motors on one frequency
inverter, you must design the contactors for the individual
motors according to utilization category AC-3.
Selecting the motor contactor is done according to the rated
operational current of the motor to be connected.
CAUTION
Debounced inputs may not be used in the safety circuit
diagram.
A changeover between the frequency inverter and the input
supply must take place in a voltage-free state.