Mitsubishi Electric MELSERVO-J5 Series User Manual page 351

■Status of I/O signals at startup and error detection
• At startup
After power-on, each output device constantly outputs the OFF signal until completion of the diagnosis. After the diagnosis is
completed, the devices assigned with [Pr. PSD08 Output device selection DO1] are output.
The diagnosis completion timing differs depending on whether safety sub-function control is by an input device or by a
network. For safety sub-function control by input device, refer to the following.
Page 344 Input device
For safety sub-function control by network refer to the following.
Page 350 Safety sub-function control by network
ON
Power supply
OFF
ON
STOS (STO output)
OFF
ON
CN8-6 pin
OFF
ON
CN8-7 pin
OFF
• At error detection
When an error is detected in a servo amplifier and an alarm that disables SSM occurs, each output device turns off.
If some other type of alarm occurs, the output from the assigned devices will continue.
Diagnosis in progress
6 FUNCTIONAL SAFETY
349
6.4 Safety sub-function
6