Before running the motor
Before starting the motor, check that the motor is mounted properly
and ensure that the machine connected to the motor allows the motor
to be started.
Set the maximum motor speed(frequency) according to the motor and
the machine connected to it.
Before reversing the motor shaft rotation direction make sure that this
can be done safely.
Make sure that no power correction capacitors are connected to the
RECEIPT OF DELIVERY
After unpacking the product, check that no signs of transport damages are
to be found on the product and that the delivery is complete (compare the
type designation of the product to the code: see chapter 12).
Should the drive have been damaged during the shipping, please contact
primarily the cargo insurance company or the carrier.
If the delivery does not correspond to your order, contact the supplier imme-
If the frequency converter is to be kept in store before use make sure that
the ambient conditions are acceptable:
–40 °F (–40 °C)...+70 °F (21 °C)
< 95%, no condensation
Application manual HVAC232/402 | Document 27-652 | Issue ENG06 | 2019-08-07
In normal operating conditions, HVAC232/402 frequency converters are
maintenance- free. However, regular maintenance is recommended to
ensure a trouble-free operating and along lifetime of the drive. We recom-
mended to follow the table below for maintenance intervals.
Clean heat sink*
Check tightening torques of terminals
12 months (If stored)
Check input and output terminals and control
Clean cooling tunnel.*
Check operation of cooling fan.
Check for corrosion on terminals, bus bars
and other surfaces.*
6 - 24 months (depending
Check and clean cooling fans:
• Main fan*
• Internal fan*
* Only for frame 4 and frame 5