Safety Command Devices And Electro-Mechanical Safety Switches; Emergency Stop Pushbuttons (E.g. Sick Es21) - Mitsubishi MELSEC-WS0-CPU0 User Manual

Table 19:
Connection of emergency
stop pushbuttons
Table 20:
Functions of emergency
stop pushbuttons
Note
Connecting devices
4.1 Safety command devices and electro-mechanical
safety switches
4.1.1

Emergency stop pushbuttons (e.g. SICK ES21)

Electrical connection: Example from Setting and Monitoring Tool with WS0-XTIO
Single-channel,
connected to 24 V
Single-channel,
connected to test
output
Dual-channel,
connected to 24 V
Dual-channel,
connected to test
output
The dual-channel emergency stop pushbuttons preconfigured in the Setting and
Monitoring Tool have equivalent switching contacts. Corresponding elements for
implementing dual-channel complementary switching contacts are available in the
element window under the group named "Potential-free contacts and restart".
Function
Testing
Series connection/ cascading If emergency stop pushbuttons are connected in series, the
Discrepancy times
Further information is available in the manual for the emergency stop pushbutton,
SICK ES21 or in the manuals for devices used.
Contact between 24 V and I1
Contact between X2 and I2
Channel 1: Contact between 24 V and I3
Channel 2: Contact between 24 V and I4
Channel 1: Contact between X1 and I5
Channel 2: Contact between X2 and I6
Possible
max. line resistance shall not exceed 100 Ω (see Chapter 12).
See Setting and Monitoring Tool.
Chapter 4
Notes
48