Mitsubishi Electronics PAC-YG63MCA User Manual
13
The LEDs of this device indicate the upper/lower limit alarm interlock output status and error status of this device.
10-1.Alarm Setpoint Output and Error Displays
*1: When a sensor error or communication error occurs, the error status is displayed.
10-2.Sensor and Communication Error Displays
If a sensor error or communication error occurs, a 4-digit error code will be repeatedly displayed according to the steps
shown below.
"Sensor and Communication Error Displays" consist of the following 10 steps. This operation is performed repeatedly to
indicate the 4-digit error code for the error.
shown below.
"Sensor and Communication Error Displays" consist of the following 10 steps. This operation is performed repeatedly to
indicate the 4-digit error code for the error.
Note :On, :Off, :Flashing
The error codes that are displayed for M-NET communication errors and sensor errors are as shown below.
10
LED Display Designations
Display Item
Display LED
Content
Note :On, :Off, :Flashing
Power supply status
(1) Power supply to CPU
LED16
(CPU power on)
: Lights when the CPU is energized.
: Flashes during M-NET communication.
(2) Power supply to M-NET
circuit
LED17
(M-NET power on)
: Lights when the M-NET is energized.
Output
status
Ch1, 2
(1) Upper/lower limit alarm
interlock output status
LED03/02
(Output LEDs)
Error status (*1)
(1) 4-digit error code
LED12/13/14/15
(Status display LEDs)
Refer to "10-2. Sensor and Communication Error
Displays".
Output
Method
Method
Ch1
Ch2
LED 03
LED 02
Level
Output
Output
: Alarm output
: Alarm stop
: Alarm stop
: Alarm output
: Alarm stop
: Alarm stop
LED11
LED12
LED13
LED14
LED15
Function
Remark
Common
Error code display (Binary number indication)
2
3
=8
2
2
=4
2
1
=2
2
0
=1
STEP1
"Sensor and
Communication Error
Displays"
Starting Point Indication
LEDs 12 to 15 flash 3 times
STEP2
Blank
Turn Off
STEP3
/
/
/
/
Error code 1000's digit
Error code 1000's digit
indication
In the case of 6,
STEP4
Blank
Turn Off
STEP5
/
/
/
/
Error code 100's digit
Error code 100's digit
indication
In the case of 6,
STEP6
Blank
Turn Off
STEP7
/
/
/
/
Error code 10's digit
Error code 10's digit
indication
In the case of 0,
STEP8
Blank
Turn Off
STEP9
/
/
/
/
Error code 1's digit
Error code 1's digit indication
In the case of 7,
STEP10
Blank
Turn Off
Error Code
Description of Error
Error Code
Description of Error
6600
Multiple address error
6607
No ACK error
6601
M-NET polarity unset error
6608
No return of response frame
6602
Transmission processor hardware error
5010
Sensor trouble in Channel 1
6603
Transmission bus-busy error
5020
Sensor trouble in Channel 2
6606
Communications with transmission processor error