Chapter 4
49
Connecting devices
4.1.2
Electro-mechanical safety switches with and without interlock
The contact symbols in this chapter show the switching status while the door is closed.
Electrical connection: Example from Setting and Monitoring Tool with WS0-XTIO
Single-channel,
connected to 24 V
Contact between 24 V and I1
Single-channel,
connected to test
output
Contact between X2 and I2
Dual-channel,
connected to 24 V
Channel 1: Contact between 24 V and I3
Channel 2: Contact between 24 V and I4
Dual-channel,
connected to test
output
Channel 1: Contact between X1 and I5
Channel 2: Contact between X2 and I6
Electrical connection: Example from Setting and Monitoring Tool with WS0-XTIO
Single-channel,
connected to 24 V
Contact between 24 V and I1
Coil at Q1
Single-channel,
connected to test
output
Contact between X1 and I1
Coil at Q1
Dual-channel,
connected to 24 V
Channel 1: Contact between 24 V and I1
Channel 2: Contact between 24 V and I2
Coil at Q1
Dual-channel,
connected to test
output
Channel 1: Contact between X1 and I1
Channel 2: Contact between X2 and I2
Coil at Q1
Function
Notes
Testing Possible
Series connection/ cascading
If safety switches are connected in series, the max. line
resistance shall not exceed 100
Ω
(see Chapter 12).
Discrepancy times
See Setting and Monitoring Tool.
Further information is available in the manuals of the electro-mechanical safety
switches or in the manuals for devices used.
Note
Table 21:
Connection of electro-
mechanical safety switches
Table 22:
Connection of interlocks
Table 23:
Functions of electro-
mechanical safety switches
and interlocks
Note
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