AC80T Tower Crane Purpose VFD Manual
10
2.5 Electrial installation
This section is to ensure the safe use of this product, maximize give play to the performance of
inerter, the reliable running of inverter, the users must comply with the below considerations and
requirements.
Safety Precautions
●
In the operation, inverter mube be reliable ground connection, otherwise it
may cause personal injury and equipment working failed.
●
To insure the safety running of inverter, installation and wiring must be
done by professional electrical engineering personnel only.
●
Do the relevant operation only under the state of power off, otherwise
there is the risk of electric shock and death.
●
Before doing the relevant operation, pls power-off all the related
equipments, and confirm that the major loop DC voltage has fallen to
safe level. After that, pls wait for 5mins and then continue the relevant
operation.
●
The inverter’s control cable, power cable and the connecting cable of the
motor must be isolated to each other, do not put them all in the same
cable slot or on the cable rack.
●
This equipment can only be used in the application which prescribed by
the manufacturer. If you need to use it in other special purpose, please
consult the sales department of our company.
●
Testing the insulation of inverter and its connectiong wires by the high
voltage insulation test equipment is forbidden.
●
When doing the insulation test to the inverter and its peripherals (filter,
reactor, etc.), please first use the 500V megohmmeter to measure its
insulation resistance to earth, the insulation resistance is not less than
4M
Ω
Special considerations for field installation and debugging:
When the GPS remote control is locked, the inverter will show “LIFE” default, cannot be
reset, but can run 10Hz at low speed.
