MITSUBISHI ELECTRIC PAC-YG60MCA - Manual (Page 12)

11
The LEDs of this device indicate the pulse input status and error status of this device.
10-1.Display Content List
*1: If a communication error occurs, switch to "Communication Error Status Display". Changing SW08-1 from ON to OFF masks the "Communication Error
Status Display" for 10 seconds so that the input status of channels 1 to 4 can be displayed.
10-2.Communication Error Status Display
If a communication error occurs, a 4-digit error code will be repeatedly displayed according to the steps shown below.
Communication error status display consists of the following 10 steps. This operation is performed repeatedly to indicate the
4-digit error code for the communication error.
Furthermore, changing SW08-1 from ON to OFF masks the "Communication Error Status Display" for 10 seconds so that
the input status of channels 1 to 4 can be displayed.
Note :On, :Off, :Flashing
The error codes that are displayed for M-NET communication errors are as shown below.
10 Display Content
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.
Input status Channels
1 to 4
(1) Input status LED12/13/14/15
(Status display LEDs)
Communication error
status (*1)
(1) 4-digit error code LED12/13/14/15
(Status display LEDs)
Refer to "Communication Error Status Display".
Input
Method
– Ch1 Ch2 Ch3 Ch4
LED11 LED12 LED13 LED14 LED15
Pulse
Input : Input
: No Input
LED11 LED12 LED13 LED14 LED15
Function Remark
Common
Error cord display (Binary number indication)
2 3 =8 2 2 =4 2 1 =2 2 0 =1
STEP1
"Error Status Display"
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
6600 Multiple address error
6601 M-NET polarity unset error
6602 Transmission processor hardware error
6603 Transmission circuit bus-busy error
6606 Communications with transmission processor error
6607 No ACK error
6608 No return of response frame