Mitsubishi Electric MELSEC-Q Series User Manual page 258

8 TROUBLESHOOTING
Description (condition where the value
Item
When the RUN LED is on
RUN
A write error (refer to Section 8.1)
DATA ERR
When CH1 PID control is being executed
CH1 RUN
When CH1 alert 1 is on
CH1 ALM1
When CH1 alert 2 is on
CH1 ALM2
When CH1 alert 3 is on
CH1 ALM3
When CH1 alert 4 is on
CH1 ALM4
When CH1 loop disconnection has been detected
CH1 LBA
-
When CH2 PID control is being executed
CH2 RUN
When CH2 alert 1 is on
CH2 ALM1
When CH2 alert 2 is on
CH2 ALM2
When CH2 alert 3 is on
CH2 ALM3
When CH2 alert 4 is on
CH2 ALM4
When CH2 loop disconnection has been detected
CH2 LBA
-
8 - 10
(3) H/W Information
(a) H/W LED information
The H/W LED information gives the following information.
becomes 1)
-
-
(b) H/W Switch information
Shows the status of the intelligent function module switch setting (Switch 1).
Description (condition where the value
Item
AT error completion (refer to Section 8.1)
AT ERR
A hardware error (refer to Section 8.1)
H/W ERR
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MELSEC-Q
becomes 1)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
8 - 10