Power Cable; Fault Handling; Indications Of Alarms And Faults - Kruger Ecowatt Drive K120 Series Operation Manual

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Ecowatt

Drive K120 series

The selection of a voltage controlled power supply depends on the power supply of the

VFD. For VFDs with an incoming voltage of 1PH 220V AC, you can use a 220VAC/2A

voltage regulator. 1PH VFDs can be charged with a 1PH voltage controlled power supply

(connect L+ to R, and N to S or T). All the DC bus capacitors share one rectifier, and

therefore they are all charged.

For VFDs of a high voltage class, ensure that the voltage requirement (for example, 380

V) is met during charging. Capacitor charging requires little current, and therefore you

can use a small-capacity power supply (2A is sufficient).

6.1.3.2 Electrolytic capacitor replacement

 Read the safety precautions carefully and follow the instructions to

The electrolytic capacitor of the VFD must be replaced if it has been used for more than

35,000 hours. For details about the replacement, contact the local Kruger office.

6.1.4 Power cable

 Read the safety precautions carefully and follow the instructions to

1. Stop the VFD, disconnect the power supply, and wait for a time no shorter than the

waiting time designated on the VFD.

2. Check the connection of the power cables. Ensure that they are firmly connected.

3. Power on the VFD.

 Only trained and qualified professionals are allowed to carry out the

The fault is indicated by indicators (see "Keypad operation procedure"). When TRIP

indicator is on, the alarm or fault code displayed in the keypad indicates the VFD is in

exception state. The function codes P07.27 to P07.32 record the types of the last six

faults. The function codes P07.33 to P07.40, P07.41 to P07.48, and P07.49 to P07.56

record the running data of the VFD at the last three faults, respectively. This chapter

covers most of the alarms and faults, and their possible causes and corrective measures,

if users cannot figure out the alarm or fault causes, contact local Kruger office.

perform operations. Otherwise, physical injuries or damage to the

device may be caused.

perform operations. Otherwise, physical injuries or damage to the

device may be caused.

work described in this chapter. Operations should be carried out

according to the instructions presented in "Safety precautions".

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Fault tracking

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