Delta ME300 Series User Manual

Chapter 15 Safe Torque Off Function
ME300
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 15-2
Figure 15-3
N
OTE
*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.

Delta ME300 Series Specifications

General

Power Rating	0.4 kW ~ 110 kW
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Communication	RS-485
Storage Temperature	-20-60°C
Dimensions	Varies by model
Weight	Varies by model
Input Voltage	3-phase 220VAC
Humidity	90% RH, non-condensing