Mitsubishi Electric MELSERVO-J5 - Page 480

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6 FUNCTIONAL SAFETY
6.4 Safety sub-function
■Speed feedback exceeded
During direction monitoring, the function monitors whether the speed is within the stop speed of the monitoring direction
specified by the speed feedback. If the time of the speed feedback remains exceeded for the duration set in [Pr. PSA15 Safety
sub-function - Speed detection delay time], the STO function is activated.
Setting functional safety parameters
Refer to the following to set the functional safety parameters.
Page 431 Functional safety parameters that must be set
When using the safety sub-function control by input device, refer to the following.
Page 436 Input device
When using output devices, refer to the following.
Page 439 Output device
When using the safety sub-function control by network, refer to the following.
Page 442 Safety sub-function control by network
When using the SDI function, set the following parameters.
Parameter Name
PSA04 Safety sub-function - Stop speed
PSA15 Safety sub-function - Speed detection delay time
PSA27 SDI positive direction monitor delay time
PSA28 SDI negative direction monitor delay time
0 r/min
(mm/s)
ON
Servo motor speed
SDIPC (SDIP command)
Stop speed
Stop speed
SDIPS (SDIP output)
ON (disabled)
OFF (enabled)
ON (disabled)
OFF (enabled)
STOS (STO output)
OFF (shut-off)
SDI positive direction
monitor delay time
Feedback
Command
Direction monitoring STO state
Speed detection delay time