Troubleshooting - Husqvarna SMART 40 Operator's Manual

Problem
The residual-current device is re-
leased.
Problem with the frequency convert-
er.
Not sufficient vibration.
10

Troubleshooting

Cause
Damaged cable or plug.
Damaged frequency converter.
Overload in the frequency converter
because of a defective part.
The vibrator head can not move free-
ly.
Defective stator tube or wires.
Damaged parts.
Overload in the frequency converter.
Overheating, temperature of the fre-
quency converter casing is more than
60°C (140°F).
Solution
Examine the cable and plug. If it is
necessary, replace damaged or de-
fective parts.
Replace the frequency converter.
Replace the defective part.
Stop the frequency converter and
wait 30 seconds. Start the frequency
converter.
Disconnect the product from the fre-
quency converter. Disconnect the
wires between the frequency convert-
er and the vibrator head. Measure
the resistance between phases on
the side of the vibrator head. Com-
pare the values with those on the rat-
ing plate and with the table, refer to
Technical data on page 12 . If the
values are incorrect, examine the
wires and the stator tube. Replace
the defective part.
Short circuit between phases and
ground. Measure the resistance be-
tween each phase and the ground. If
the resistance is 10 mega-ohms or
less, examine the wires and the sta-
tor tube. Replace the defective part.
Lift the product from the concrete,
wait 2 minutes. Measure the input
current to the product, refer to
nical data on page 12 for maximum
values. If the values are incorrect,
disassemble the vibrator head and
examine the parts. Replace damaged
parts.
Put the vibrator head into concrete.
Measure the input current to the
product. Make sure that the current is
not more than the values on the rat-
ing plate.
Wait until the temperature of the cas-
ing decreases 10°C (50°F).
1004 - 001 - 01.04.2020
Tech-