Delta ME300 Series User Manual

Chapter 15 Safe Torque Off Function
ME300
15-2
15-1 Basic Function Description
The ME300 series provide a Safe Torque Off (STO) function. The ME300 series use dual-channel S1
and S2 signal inputs to turn off IGBT switching, further preventing the generation of motor torque in order
to achieve a safe stop. Refer to Figure 1 for the Safe Torque Off function circuit diagram.
The ME300 Safe Torque Off function meets the following international standards:
ISO 13849-1: 2015 Category 3 PL d
IEC 61508 SIL2
EN 62061 SIL CL 2
EN 60204-1 Category 0
T
he circuit diagram for the Safe Torque Off function
Figure 15-1

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