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ABB DRIVES FOR HVAC
ACH480 drives
Quick installation and start-up guide
Safety instructions
WARNING! Obey these instructions. If you ignore them, injury or death,
or damage to the equipment can occur. If you are not a qualified
electrical professional, do not do electrical installation or maintenance
work.
•
Keep the drive in its package until you install it. After unpacking, protect the
drive from dust, debris and moisture.
•
Use the required personal protective equipment: safety shoes with metal toe
cap, safety glasses, protective gloves and long sleeves, etc.
•
When the drive or connected equipment is energized, do not do work on the
drive, motor cable, motor, control cables or control circuits.
•
Do not do work on the drive when a rotating permanent magnet motor is
connected to it. A rotating permanent magnet motor energizes the drive,
including its input and output power terminals.
Electrical safety precautions
1. Clearly identify the work location and equipment.
2. Disconnect all possible voltage sources. Make sure that re-connection is not
possible. Lock out and tag out.
•
Open the main disconnecting device of the drive.
•
If you have a permanent magnet motor connected to the drive,
disconnect the motor from the drive.
•
Disconnect any dangerous external voltages from the control circuits.
•
After you disconnect power from the drive, always wait 5 minutes to let
the intermediate circuit capacitors discharge before you continue.
3. Protect any other energized parts in the work location against contact.
4. Take special precautions when close to bare conductors.
5. Measure that the installation is de-energized.
•
Use a multimeter with a minimum impedance of 1 Mohm.
•
Make sure that the voltage between the drive input power terminals (L1,
L2, L3) and the ground (PE) is close to 0 V.
•
Make sure that the voltage between the drive output terminals (T1/U,
T2/V, T3/W) and the ground (PE) is close to 0 V.
•
Make sure that the voltage between the drive DC terminals (R+/UDC+
and UDC-) and the ground (PE) is close to 0 V.
6. Install temporary grounding as required by the local regulations.
7. Ask the person in control of the electrical installation work for a permit to
work.
See the drive hardware manual for the full safety instructions.
1. Examine the installation area
The drive is intended for cabinet installation and has a degree of protection of
IP20 / UL open type.
Make sure that in the installation area:
•
There is sufficient space above and below the drive for cooling, and hot air
does not recirculate. Refer to
•
The ambient conditions are suitable. Refer to
•
The mounting surface is non-flammable and can hold the weight of the drive.
Dimensions and weights
Refer to
•
Materials near the drive are non-flammable.
•
There are no sources of strong magnetic fields, such as high-current single-
core conductors or contactor coils near the drive. A strong magnetic field
can cause interference in the operation of the drive.
2. Install the drive
You can install the drive with screws, or to a DIN rail (IEC/EN 60715 top hat type,
width × height = 35 mm × 7.5 mm [1.4 in × 0.3 in]).
•
Make sure that there is a minimum of 75 mm (3 in) of free space at the top
and bottom of the drive for cooling air.
•
You can install the R1, R2, R3 and R4 drives tilted by up to 90 degrees, from
vertical to fully horizontal orientation.
•
You can install several drives side by side.
•
Do not install the drive upside down. Make sure that the cooling air exhaust
is above or level with the cooling air inlet.
To install the drive with screws
1. Make marks onto the surface for
the mounting holes. Refer to
Dimensions and weights
included mounting template for
frames R3 and R4.
2. Drill the holes for the mounting
screws. If necessary, install
suitable plugs or anchors into the
holes.
3. Install the mounting screws into
the holes. Leave a clearance
between the screw head and
installation surface.
Free space requirements
.
. Use the
.
Ambient conditions
W
.
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