Delta MH300 Series - 17-3 Wiring Diagram

Chapter 17 Safe Torque Off FunctionMH300
17-4
17-3 Wiring Diagram
17-3-1. The internal circuit diagram of the safe control loop is shown as Fig.17-2.
17-3-2. The terminals of the safe control loop +24V-S1-S2 are short-circuited together with jumper
wire at the factory, see the red circle marked in Fig. 17-2.
17-3-3. The safe control loop wiring diagram is as follows:
1. Remove the jumper wire from +24V-S1-S2.
2. The wiring is shown in Fig. 17-3 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.
Fig.17-2
Fig.17-3
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.
MO2 (Factory setting: 66)
MCM
*1