HKS VFD Drive A2 Series User Manual page 24

A2 VFD
(0.75-30kW)
10.2 Periodic maintenance
VFD needs periodic maintenance every 1 or 3 month which
depends on the runtime environment.
Notice: Machine maintenance or components replace must be
performed by professionals. If any metal objects such
screws or washer are left inside the machine, it would
cause fatal damage to the VFD！
Check itmes：
1、 Whether the control port screws are loose or not;
2 、 Whether the main loop port are loose or not. Or is there
any sign of overheated in the line of main loop;
3 、 Is there any trauma in power and control cable. Especially,
check the robber skin in the contact with other metal;
4、 Is the insulation bandage of power cable loose;
5 、 Use vacuum cleaner to clean dust on board and ventilation
channel;
6 、 If the motor needs examination, please disconnect the
motor wire from VFD's U,V,W port. Otherwise, it may
cause fatal damage to VFD.
Notice: VFD has already passed the pressure test. Any
10.3 Replace the wearing parts
The wearing parts contain cooling fan and filter electrolytic
capacitor whose lifetime depends on environment and load. When
the temperature is 25℃, the lifetime of cooling fan is 20~40Kh
and that of capacitor is 30~50Kh. User can decide when to replace
these components.
1.
improper test may cause fatal damage to VFD！
Cooling fan
Cause of damage: wear bearing, aging fan, heavy dust
Criterion: rip in fans, abnormal vibration during
runtime.
environment.
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