WEG CFW500-SFY2 Instrucciones Y Manual De Seguridad página 15

Installation
STO1 STO2
(contact (contact
between between
XC7:2 and XC7:4 and
XC7:3) XC7:5)
Open Open
Open Closed
Closed Open
Closed Closed
Figure 2.3 on page 14
describes its operation.
STO1
STO2
GND
STO1 STO2
(voltage on (voltage on
XC7:3) XC7:5)
0 V 0 V
0 V + 24 V
+ 24 V 0 V
+ 24 V + 24 V
14 | CFW500
Table 2.3: Truth table for dry contacts operation
Safety Stop
Function
Frequency inverter remains in the safe state. Starting
Enabled commands are not accepted in this state. HMI display
indicates alarm A0160
Frequency inverter trips to fault F0160 if such input
configuration lasts longer than 1 s. To reset this fault, STO1
Fault
and STO2 must be in the same logical state and the frequency
inverter must be de-energized and re-energized
Frequency inverter operates normally, accepting starting
Disabled
commands
illustrates the installation with OSSD, and
1
2
3
4
5
6
Figure 2.3: Installation using OSSD signals
Table 2.4: Truth table for OSSD signals
Safety Stop
Function
Frequency inverter remains in the safe state. Starting
Enabled commands are not accepted in this state. HMI display indicates
alarm A0160
Frequency inverter trips to fault F0160 if such input configuration
lasts longer than 1 s. To reset this fault, STO1 and STO2 must
Fault
be in the same logical state and the frequency inverter must be
de-energized and re-energized
Frequency inverter operates normally, accepting starting
Disabled
commands
Frequency Inverter Behavior
Table 2.4 on page 14
Frequency Inverter Behavior