How To Pull Out The Sto Cable - Mitsubishi Electric MELSERVO-J4 Series Instruction Manual

Signals and STO state
The following table shows the TOFB and STO states when the power is on in normal state and STO1 and STO2 are on
(closed) or off (opened).
Input signal State
STO1 STO2 Between TOFB1 and TOFCOM
(Monitoring STO1 state)
Off Off On: STO state (base circuit shut-off)
Off On On: STO state (base circuit shut-off)
On Off Off: STO release state
On On Off: STO release state
Test pulse of STO input signal
Set the test pulse off time inputted from outside to 1 ms or less.

How to pull out the STO cable

The following shows how to pull out the STO cable from the CN8 connector of the servo amplifier.
With the clip ( 1)) of the STO cable plug pressed in the direction of the arrow, hold the plug ( 2)) and pull out.
2)
1)
Between TOFB2 and TOFCOM
(Monitoring STO2 state)
On: STO state (base circuit shut-off)
Off: STO release state
On: STO state (base circuit shut-off)
Off: STO release state
13.2 STO I/O signal connector (CN8) and pin assignment
Between TOFB1 and TOFB2
(Monitoring STO state of the servo
amplifier)
On: STO state (base circuit shut-off)
Off: STO state (base circuit shut-off)
Off: STO state (base circuit shut-off)
Off: STO release state
13 USING STO FUNCTION
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