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HVAC DRIVES
Soft start and stop Fireman’s override
User defined ramps for softer fan/ In case of fire emergency, drives run
pump/compressor starts and stops fans ignoring faults and warnings, to
Software characteristics for the ACH580 HVAC eliminate mechanical and electrical ensure safe evacuation and mitigate
stresses on the system. the spread of smoke.
drives family
The ACH580 drives come with a range of advanced features that not only provide a
Flying start Active braking
thorough heating, ventilation and air conditioning control, but also make drive integration,
The feature allows to catch In case of fire emergency, drives run
commissioning, and operation easier than ever before.
free-wheeling fans and smoothly fans ignoring faults and warnings, to
accelerate or decelerate them to a ensure safe evacuation and mitigate
required speed, without wasting time the spread of smoke.
on braking.
Air filter monitoring Motor heating
The drive alarms on a clogged filter, to The feature prevents condensation
maintain air quality and avoid energy and saves the motor from failure due
losses. to corrosion, which is typical for rooftop
mounted air handlers.
Leakage monitoring Bearing monitoring
In closed loop HVAC systems, drives Bearings are one of the weakest points
can alarm on the leakage in the in HVAC applications. Drives can alarm
system, preventing flooding and on the bearing upcoming failure, so it
property damage. could be replaced timely, without HVAC
process interruption.
Resonance monitoring Intelligent pump control
Mechanical aspect of resonance The feature maintains stable pumping
damages the application itself process for up to 8 pumps operating
and connected piping/ductwork, in parallel. It is possible to optimise
while acoustic aspect makes the the speed and number of pumps for
environment noisy. ABB drives skip creating required flow and pressure,
resonance frequencies for better even if one or more pumps fail.
comfort and longer equipment lifetime.
System overpressure protection Pump dry run protection
The interlock protects water pipes/air The interlock stops operation when the
ducts by stopping pump/fan operation pressure on the pump suction side is
when the measured pressure exceeds below a threshold, to prevent pump
a threshold, e.g. due to closed valves/ damage from running dry.
dampers.
Sleep/boost Frost protection
The feature stops the pump at low Cold temperatures outside might
demand, instead of running it slowly lead to heating coil freezing. To avoid
below its efficient operating range. damage, drives can alarm on a too
Allows to save energy and extend low air temperature and shut down the
the pump and motor lifetime by system.
decreasing start/stop cycles during the
day.
38 | Variable Speed Drives Variable Speed Drives | 39
Variable Speed Drives | 39
