Omron NE1A Series - Page 143

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Command Reference: Function Blocks Section 6-5
Error Handling and Error Resetting
Note If a discrepancy error occurs in one of the pairs when set to Dual Channel
Equivalent (2 pairs) or Dual Channel Complementary (2 pairs), to reset the
error make input pairs 1 and 2 both inactive and then active.
Timing Charts
Single Channel, Function Test Set to Enabled
Error Behavior for error detection Resetting the
condition Output
Enable
Fault
Present
Error output error condition
Discrepancy error at
pair 1
OFF
(safety
state)
ON
Discrepancy Error Pair 1: ON
1. Function Test Dis-
abled
Remove the cause of
the error and then
make the inputs in
active and then active
again (See note.), or
change the NE1A-
series Controller's
operating mode to
IDLE Mode and then
back to RUN Mode.
2. Function Test Re-
quired
If Function Test
Required is active:
Remove the cause of
the error and then
make the inputs
active, inactive, and
then active again
(i.e., perform the
safety gate test).
If Function Test
Required is inactive:
Remove the cause of
the error and then
make the inputs in
active and then active
again.
Discrepancy error at
pair 2
Discrepancy Error Pair 2: ON
Function test error
Safety gate test was not
performed normally
between Function Test
signals.
Function Test Error: ON
Synchronization error
Synchronization Test Error:
ON
Input 1
Output
Enable
Function
Test Error
Fault
Present
Function
Test Sig.
Function
Test Req.
Idle to RUN