Sto90 Configuration; Dip Switches S1 - WEG CFW900 Serie Manual De Seguridad

Table 2.3: Truth table for operation with dry contacts
STO1 STO2
(Contact (Contact
Between Between
XC2:5 and XC2:3 and
XC2:6) XC2:4)
Open Open
Open Closed
Closed Open
Closed Closed
Figure 2.3 on page 15
describes its operation.
GNDS
Table 2.4: Truth table for operation with OSSD signals
STO1 STO2
(Voltage on (Voltage on
XC2:6) XC2:4)
0 V 0 V
0 V + 24 V
+ 24 V 0 V
+ 24 V + 24 V

2.3 STO90 CONFIGURATION

2.3.1 DIP Switches S1

In order to configure the STO90 for the proper type of installation, the DIP switches S1 must
be set before energization, according to
contact" and "O" stands for "OSSD".
NOTE!
Setting the DIP switches S1 to "D" or "O" after energization has no effect on
the equipment.
Safety
Function
CFW900 remains in the safe state. Starting commands are
Enabled
not accepted in this state. HMI indicates the STO state
CFW900 trips fault F160 if such input configuration lasts
longer than 1 s. To clean this fault, STO1 and STO2 must be
Fault
in the same logical state and CFW900 must be de-energized
and re-energized
Disabled CFW900 operates normally, accepting starting commands
illustrates the installation with OSSD, and
XC2
5
1 3
4 6
2
Figure 2.3: Installation using OSSD signals
Safety
Function
CFW900 remains in the safe state. Starting commands are not
Enabled
accepted in this state. HMI indicates the STO state
CFW900 trips fault F160 if such input configuration lasts longer
than 1 s. To clean this fault, STO1 and STO2 must be in the
Fault
same logical state and CFW900 must be de--energized and
re-energized
Disabled CFW900 operates normally, accepting starting commands
Table 2.5 on page
Behavior Description
Table 2.4 on page 15
Behavior Description
16, where "D" stands for "dry
Installation
CFW900 | 15