Справочник Пользователя для Mitsubishi Electronics Q64TCTTBWN

278

The following table shows part names of the Q64TCN.

1)

RUN LED

Indicates the operating status of the Q64TCN.

On

Operating normally

Off

• The watchdog timer error has occurred.
• Online module change enabled.
• CPU stop error has occurred when all channels are set to "CLEAR" on Switch Setting.

2)

ERR. LED

Indicates the error status of the Q64TCN.

On

Hardware fault (Including no connection of a cold junction temperature compensation resistor)

Flashing

Write data error is occurring

*2

Off

Operating normally

3)

ALM LED

Indicates the alert status of the Q64TCN.

On

Alert is occurring.

Flashing

• Temperature process value (PV) came out of temperature measurement range.
• Loop disconnection was detected.
• Temperature sensor is not connected.

Off

Alert is not occurring.

4)

HBA LED

Indicates the heater disconnection detection status or the output off-time current error status of the 
Q64TCTTBWN and Q64TCRTBWN.

On

Either of the following is detected.

• Heater disconnection
• Output off-time current error

Off

Neither of the following is detected.

• Heater disconnection
• Output off-time current error

5)

Terminal block for I/O

*1

Used for temperature sensor input and transistor output.

6)

Terminal block for CT

*1

Used for current sensor (CT) input.

7)

Cold junction temperature 
compensation resistor

Used when cold junction temperature compensation is executed for the Q64TCTTN and 
Q64TCTTBWN.

3)

5)

4)

3)

6)

5)

1)

2)

1)

2)

8)

8)

3)

4)

3)

5)

1)

2)

2)

1)

7)

7)

8)

8)

6)

5)