Mitsubishi Electric MELSERVO-J5 User Manual page 485

Torque monitoring
■Torque command monitoring
During torque monitoring, the function monitors whether the torque command does not exceed the SLT torque upper limit
value and does not fall below the SLT torque lower limit value. Upon detection that the torque command exceeds or falls
below the SLT torque, the STO function is activated. However, there will be a delay equal to the time set in [Pr. PSB18 SLT
torque detection delay time] from the detection until the STO function is activated.
Torque 0.0 %
ON (disabled)
SLT1C (SLT1 command)
OFF (enabled)
ON (disabled)
SLT1S (SLT1 output)
OFF (enabled)
ON
STOS (STO output)
OFF (shut-off)
■Torque feedback monitoring
During torque monitoring, the function monitors whether the torque feedback is within the SLT torque. If the time of the torque
feedback remains exceeded for the duration set in [Pr. PSB18 SLT torque detection delay time], the STO function is activated.
Torque 0.0 %
ON (disabled)
SLT1C (SLT1 command)
OFF (enabled)
ON (disabled)
SLT1S (SLT1 output)
OFF (enabled)
ON
STOS (STO output)
OFF (shut-off)
SLT torque upper limit value
SLT torque lower limit value
SLT torque upper limit value
SLT torque lower limit value
Torque monitoring
Torque detection delay time
Command
Feedback
Torque monitoring
Torque detection delay time
Command
Feedback
STO state
STO state
6 FUNCTIONAL SAFETY
483
6.4 Safety sub-function
6