CHAPTER 6 COUNTERMEASURE FOR ABNORMALY

6.1 Trip display

When the inverter is in a tripped state, the inverter displays an error code (See table below). The trip history monitor (d081 to d086) also displays the same error code as the inverter.

Trip code

Inverter’s running condition of trip detected

6.2 Protection function list

The table below describes an error code for protecting the inverter and the motor.

Error Display in the table below, X is 6 (Error for option slot 1) or 7 (Error for option slot 2).

No.

Function

Error

Action

 

 

Display

 

1

Profibus communication

EX0

This error is displayed, when disconnection occurred, while

 

error

 

the inverter is operating with Profibus.

2

Inverter communication

EX9

This error is displayed, when communication timeout occurs

 

error

 

between the inverter and the option board.

With regard to the other errors except table above, refer to Inverter instruction manual chapter 4 Explanation of function.

6.3 Countermeasure for a trip state

The table below only corresponds to additional trip codes, with regard to the other countermeasures refer to Inverter instruction manual chapter 4 Explanation of function.

Trip

Name of trip

Cause

 

Conformation

Countermeasure

code

 

 

 

 

 

EX0

Profibus

Defective connector

for

Check the area of

Improve the connection and then

 

Communication

signal cable causes

connection.

reset the power supply.

 

error

connection fail.

 

 

 

 

 

Terminating resistor

is

Check the Connection

Connect the terminating Resistor

 

 

not connected.

 

 

and then reset the power supply

 

 

Wiring distance does not

Check the

Adjust the setting to the matching

 

 

much with baudrate.

 

wiring distance

Baudrate or adjust wiring distance

EX9

Inverter

Option board is

 

Check as mentioned left

Mount the option board again and

 

communication

removed.

 

 

then secure it with screws.

 

error

 

 

 

 

6.4 LED display and Countermeasure

Following states are indicated by three LED's.

LED

Color

 

Function

Countermeasure

Fieldbus

Green

Fieldbus is on-line.

-

On/Off

Red

Fieldbus is off-line.

Confirm connection fails of connector.

Fieldbus

Flash Red 1Hz

Configuration error.

Confirm setting data and send correct data.

Flash Red 2Hz

User configuration data error.

Confirm system setting and adjust adequate.

diagnosis

Flash Red 4Hz

VPC3+ initialization failed.

Need to change the SJ-PB.

 

 

Green

Serial channel status OK.

-

 

Flash Red 1Hz

Serial communication error.

Confirm cable length and connection fails of

Serial channel

 

 

 

connector. And then adjust adequate.

Red

No serial communication.

Confirm cable length and connection fails of

status

 

(Or during

initializing inverter

connector. And then adjust adequate.

 

 

data. In

this case, after

 

 

 

initializing, LED color returns to

 

 

 

green )

 

 

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Hitachi SJ-PB(T) Trip display, Protection function list, Countermeasure for a trip state, LED display and Countermeasure