Chapter 6 - Troubleshooting & Maintenance

Display

Protective

Description

Function

 

 

 

EEPROM Error 1 The keypad EEPROM has a fault causing parameter read/write error.

 

EEPROM Error 2 The ROM version for the inverter and keypad are different.

 

Inverter H/W Fault

When an error occurs to the control circuitry of the inverter a fault signal is sent. There are

 

the CPU error, the EEP error, Fan Fault, Ground Fault and NTC Damage for this fault

 

CPU Error

The CPU has a fault.

 

EEP Error

The EEPROM on inverter main board has a fault.

 

Fan fault

The cooling fan does not rotate.

 

Ground Fault

A ground fault occurs. Inverter checks ground fault only when power is ON and run

 

command is entered.

 

 

 

NTC Damage

NTC is damaged.

Note: “HW” is displayed when “FAN”, “EEP”, “CPU2”, “GF”, or “NTC” faults occur. Use “FUNC”, “UP”, “UP”, “UP” keys to see the detailed fault contents.

CAUTION Inverter outputs voltage for 20msec to check Ground Fault.

6.1.1Operating Method and Fault Display when Frequency Reference is Lost I/O-48 [Operating Method when Frequency Reference is Lost]

 

I/O-48

Setting

Function Description

0

(None)

 

Continues operation when the frequency reference is lost (Factory Default)

1

(FreeRun)

Free runs and stops when the frequency reference is lost.

2

(Stop)

 

Decelerates and stops when the frequency reference is lost.

Keypad Display when Analog Frequency Reference is Lost

Keypad Display

Contents

_ _ _ L

Displayed when V1 analog frequency reference is lost.

_ _ _ L

Displayed when I analog frequency reference is lost.

Fault Contents and Operating Status Prior to Fault

1) Present Fault Contents (Ex: Over Current)

Code

Display

Description

DRV-7

OC

Displays the present fault contents (Over current)

Check the fault contents before pressing the reset key. Press the [FUNC] key and then use the [ (Up)], [ (Down)] keys to check the operating information (output frequency, output current, acceleration, deceleration, constant speed status) prior to fault. Press the [FUNC] key to exit. The inverter will store the

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Cleveland Range inverter manual Troubleshooting & Maintenance
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inverter specifications

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