User Mode Switches; Potential-Free Contacts - Mitsubishi MELSEC-WS0-CPU0 User Manual

Chapter 4
Table 31:
Connection of user mode
switches
Table 32:
Function of user mode
switches
Note
Table 33:
Functions of potential-free
contacts
53
Connecting devices
4.1.6

User mode switches

Electrical connection: Example from Setting and Monitoring Tool with WS0-XTIO
Mode switch (1 of 2)
connected to 24 V
Mode switch (1 of 2)
connected to test output
Function
Testing
 User mode switches without test pulses allow 2 to 8 operating modes; user mode
switches with test pulses allow 2 to 4 operating modes.
 When wiring the tested user mode switches it should be noted that odd-numbered
inputs (I1, I3, I5, I7) have to be used if an odd-numbered test output (X1, X3, X5,
X7) is used, and even-numbered inputs (I2, I4, I6, I8) have to be used if an even-
numbered test output (X2, X4, X6, X8) is used.
 Further information is available in the manual of the user mode switch.
4.1.7

Potential-free contacts

The Setting and Monitoring Tool makes a series of potential-free contacts available for
"free" configuration of contact elements. This allows different NC-/NO-contact
combinations with and without testing to be implemented. In addition elements are
available for the start and stop button, reset button and external device monitoring
(EDM).
Function
Testing
Series connection
Discrepancy time
Channel 1: Contact between 24 V and I1
Channel 2: Contact between 24 V and I2
Channel 1: Contact between X1 and I1
Channel 2: Contact between X1 and I3
Possible
Possible
Possible
See Setting and Monitoring Tool.
Notes
Notes