Chapter 15 Safe Torque Off FunctionME300
15-4
15-3 Wiring Diagram
15-3-1. Figure 2 shows the internal circuit diagram of the safe control loop.
15-3-2. The terminals of the safe control loop +24V-S1-S2 are short-circuited together with jumper
wire at the factory, as shown in Figure 2.
15-3-3. The safe control loop wiring diagram is as follows:
1. Remove the jumper wire from +24V-S1-S2.
2. The wiring is shown in Figure 3 below. Normally, you must close the ESTOP contact
switch, so the drive can output without displaying an error.
3. In STO mode, the switch ESTOP is turned on. The drive stops outputting and the keypad
displays STO.
Figure 2
Figure 3
NOTE
*1 is factory jumper wire shorting +24V-S1-S2. To use the Safety function, remove this jumper wire.
To disable the Safety function, short-circuit +24V-S1-S2 with a jumper wire.
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