Mitsubishi Electric NZ2GN2S1-32D User Manual page 145

When the ON/OFF status of an external output cannot be changed
When the ON/OFF status of an external output cannot be changed, check the following items.
Check item
Is the I/O PW LED turned on?
When External output signal (RY0 to RY1F) is
turned on, is the corresponding LED (Y0 LED to
Y1F LED) of the I/O module turned on?
Has the setting for function setting switch 6 or
function setting switch 7 been changed while
External output signal (RY0 to RY1F) is used?
Are signals output from the output terminal Y on
which the LED (Y0 LED to Y1F LED) is on?
On the network configuration settings, has the
network synchronous communication setting
(synchronous/asynchronous) or the setting for
function setting switch 6 or function setting
switch 7 been changed?
Is the inter-module synchronous interrupt
program created when MELSEC iQ-R series
modules use the CC-Link IE Field Network
synchronous communication function together
with the inter-module synchronization function?
Is RWw10 to RWw4F is set for the refresh device
setting while the module is operating in
synchronous timing control mode?
Is the value set in Synchronous output timing
setting Y OFF to ON/ON to OFF (RWw10 to
RWw4F) exceeding the synchronization cycle
while the module is operating in synchronous
timing control mode?
Is the ON/OFF switching period of output set to
be an interval shorter than the maximum output
response time when the module uses
synchronous timing control mode?
Is there any problem with other equipment such
as the master/local module and connected
devices?
When CC-Link IE TSN/CC-Link IE Field diagnostics cannot be performed
When CC-Link IE TSN/CC-Link IE Field diagnostics cannot be performed, check the following items.
Check item
Is the version of the engineering tool supported?
Action
Take corrective action according to the following.
Page 140 When the I/O PW LED does not turn on
If the above LED is not turned on, check and correct the refresh parameter so that the refresh device
setting matches the corresponding setting in the program. For the refresh parameter setting, refer to the
following.
 User's manual for the master/local module used
If the corresponding LED (Y0 LED to Y1F LED) of the I/O module is not turned on, there is a problem with
the setting for function setting switch 6 or function setting switch 7.
When using External output signal (RY0 to RY1F), turn off both the function setting switch 6 and the
function setting switch 7.
In addition, turn off and on the power supply, or perform remote reset after changing the setting for function
setting switch 6 or function setting switch 7.
If signals are not output, there is a problem with the output wiring.
Check the wiring confirming that the output wiring is not disconnected or short-circuited.
Refer to the following as well.
Page 147 Troubleshooting for output circuit
When the network synchronous communication setting or the setting for function setting switch 6 or
function setting switch 7 has been changed, turn off and on the power supply, or perform remote reset.
Create the inter-module synchronous interrupt program when MELSEC iQ-R series modules use the CC-
Link IE Field Network synchronous communication function together with the inter-module synchronization
function.
For the inter-module synchronous interrupt program, refer to the following.
 MELSEC iQ-R Inter-Module Synchronization Function Reference Manual
There is a problem with the refresh device setting.
Check and correct the refresh parameter so that the refresh device setting matches the corresponding
setting in the program.
If a value exceeding the synchronization cycle is set, an external output does not change.
Correct the value so that a value set in Synchronous output timing setting Y OFF to ON/ON to OFF
(RWw10 to RWw4F) is equal to or smaller than the synchronization cycle.
Because the module uses synchronous timing control mode, if the ON/OFF switching period of output is set
to be shorter than the maximum output response time, output may not turn on or off.
Correct the values of Synchronous output timing setting Y OFF to ON or ON to OFF (RWw10 to RWw4F)
so that the ON/OFF switching period becomes longer than the maximum output response time.
If there is no problem with other equipment, the possible cause is an I/O module failure. Please consult
your local Mitsubishi representative.
Action
Check the version of the engineering tool, and if it is prior to the compatible versions, update it.
11 TROUBLESHOOTING
11.4 Troubleshooting by Symptom
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