Eaton Industrial Switchgear - xStart switching, protections and actuating motors

405 / 439

2010 CA08103002Z-EN
Frequency inverters
H-Max™
10/9
H-Max™Description
Application
H-Max™ frequency inverters are
specially suitable for continuously
variable speed control of three-phase
asynchronous motors in heating,
ventilation and air conditioning (HVAC)
applications. A comprehensive range
of control and function modules allow
an automatic changeover in applica-
tions with severalmotors, cascade and
bypass controllers and direct control
of non-stabilized motors.
The devices of the H-Max™ series
support energy-optimized applications
with fluid flowmachines (pumps, fans).
They allow the PID controllers to
maintain a constant conveying
pressure in booster stations regard-
less of throughput. A fire control en-
sures reliable operation of pumps in
sprinkler systems.
The network protocols relevant for
HVAC applications – BACNet and
Modbus – are included onboard as
standard in two versions (RS485,
Ethernet).
With this comprehensive range of
setting options, ease of handling is
important. The frequency inverters are
preset for the assigned motor rating
and can be taken into operation
without any parameterization
required. A clear, comprehensive
graphic display shows all relevant
drive parameters. Two enclosure
versions with IP21 and IP54 protection
types are available for individual
installation.
For the operation of standard three-
phase asynchronous motors the
devices supply rated operational
currents of 3.4 to 310 A for assigned
shaft ratings of:
• 0.75 to 90 kW at 230 V
(three-phase mains connection),
• 1.1 to 160 kW at 400 V
(three-phase mains connection).
Features
• Compact design through state-of-
the-art IGBT modules
• Integrated radio interference
suppression filter (EMC)
• Integrated DC link choke
• Plug-in keypad with backlit graphic
LCD display
• 6 digital inputs (24 V DC) for sink-
and source-type control
• 3 relays (2 changeover contacts,
1 N/O, 230 V) on a plug-in card, can
be replaced with other relay
configurations or additional digital
and analog inputs and outputs
• 2 analog inputs (0 to +10 V, 4 to
20 mA), selectable and scaleable
• 1 analog output (0 to +10 V),
scaleable
• 1 serial interface (RS485, Modbus
RTU)
• Internal braking transistor
• 2 slots for optional fieldbus connec-
tion (CANopen, PROFIBUS-DP,
DeviceNet, LonWorks)
• User-friendly commissioning
through fast configuration and
application menu
• Compliancewith global standards to
CE, UL, c-UL and c-Tick
Functions
A comprehensive range of protection
functions allow safe operation and the
protection of frequency inverter, motor
and application. They offer protection
against:
• Overcurrent, ground fault
• Overload (electronic motor protec-
tion), underload, dry running
• Overtemperature
• Overvoltage, undervoltage
Further functions are:
• Flying restart circuit
• Thermistor protection
• Restart interlock, automatic restart
• Actual/reference value monitoring
• U/f control or sensorless vector
control
• Double starting current and
1.1 times overcurrent
• 2 PID controllers
• Sequencing, multi-motor and
bypass control, cascading
• Fire control
• Automatic sleep and wake-up
function
• Timer function (day/time control)
• Braking control
• DC braking before start and up to
motor standstill
• 8 fixed frequencies
• Electronic motor potentiometer
• Logic function (AND, OR, XOR)
• Upper and lower frequency and
current limits
• Frequency hopping (frequency
masking)
• 2 parameter sets
Documentation
An instructional leaflet and a CD are
included with each frequency inverter
of the H-Max™ series.
The instructional leaflet is a quick
guide with illustrations and notes in
23 languages about the correct
handling, mounting and electrical
connection of the device. The CD
contains the instructional leaflet as
well as the Hardware and Engineering
manual in several languages.
The current documentation is also
available for download from