When Synchronous Output Is Not Started - Mitsubishi Electric MELSEC iQ-R Series User Manual

When synchronous output is not started

Check the following.
Check item
Checking the system Is the module set as the target module to be
parameter of engineering synchronized.
tool
Checking the operating Does the RUN/STOP/RESET switch indicate
status of the CPU module the STOP state or has a stop error occurred?
Checking the program Is 'CH1 D/A conversion enable/disable
setting' (Un\G500) set to D/A conversion
disable (1)?
Has 'Operating condition setting request' (Y9)
been executed?
Is 'CH1 Output enable/disable flag' (Y1) off?
Is the inter-module synchronous interrupt
program (I44) prepared?
Has the EI instruction been executed?
Has any value been written to 'CH1 Digital
value' (Un\G460)?
Checking the connection Is the external power supply 24VDC
method supplied?
(1) Is the external power supply correctly
(2) Is the external power supply 24VDC
The case other than the above
wired?
supplied within the specified range?
Action
Check 'Synchronization status monitor' (Un\G9600). If the monitor status is
Inter-module synchronization non-target (0), the module is not set as the
target module to be synchronized.
Set the module as the target to be synchronized in "Select Inter-module
Synchronization Target Module" in the system parameter.
Set the RUN/STOP/RESET switch to RUN. When a stop error has occurred,
eliminate the cause according to the following.
Page 128 List of Error Codes
Check 'CH1 D/A conversion enable/disable setting' (Un\G500) and set D/A
conversion enable (0).
Turn on and off 'Operating condition setting request' (Y9) to enable the
parameter settings.
Check the status of 'CH1 Output enable/disable flag' (Y1).
If 'CH1 Output enable/disable flag' (Y1) is off, correct the program.
To execute synchronous output, write a value to 'CH1 Synchronization digital
value' (Un\G9500) in the inter-module synchronous interrupt program.
To run the inter-module synchronous interrupt program, execute the EI
instruction in the program. Execute the EI instruction.
To execute synchronous output, write a value to 'CH1 Synchronization digital
value' (Un\G9500).
If any value has been written to 'CH1 Digital value' (Un\G460), correct the
program so that the value is written to 'CH1 Synchronization digital value'
(Un\G9500).
(1) Wire the external power supply by referring to the "External Wiring". (
MELSEC iQ-R High Speed Digital-Analog Converter Module User's
Manual (Startup))
(2) Supply 24VDC within the range of the performance specifications. (
MELSEC iQ-R High Speed Digital-Analog Converter Module User's
Manual (Startup))
The possible cause is a failure of the D/A converter module. Please consult
your local Mitsubishi representative.
3.3 Troubleshooting by Symptom
3 TROUBLESHOOTING
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