Filter
Top Products
3
Wiring
The safety related terminals are described in Table.2 and Table.3
Table.2 The safety related terminals
Table.3 Truth table of Safety related signals
Input power S1-SC S2-SC Failure SO-SC RUN-SE or A-C Drive state
OFF - - - OFF(Open) OFF(Open) Drive shutoff (Safe state)
No failure OFF(Open) ON(Close) Drive enable
Short Short
Detected OFF(Open) OFF(Open) Drive shutoff (Safe state)
No failure ON(Close) ON(Close) Drive shutoff (Safe state)
Open Open
Detected OFF(Open) OFF(Open) Drive shutoff (Safe state)
Short Open Detected OFF(Open) OFF(Open) Drive shutoff (Safe state)
ON
Open Short Detected OFF(Open) OFF(Open) Drive shutoff (Safe state)
Terminal
Symbol
Description Rating
S1
For input of safety stop channel1.
S1-SC is
Open: In safety stop mode.
Short: Non safety stop mode.
S2
For input of safety stop channel2.
S2-SC is
Open: In safety stop mode.
Short: Non safety stop mode.
Input resistance:4.7kOhm
Current : 4 to 6 mA
(In case of shorted to SC)
Voltage : 21 to 26 V
(In case of open from SC)
SO
As output for safety stop condition.
SO terminal type is ‘Open collector output’.
SO-SC is
OFF(Open) :Drive enabled
ON(Close) :Drive shutoff, no fault
Important: SO terminal should be used for monitoring safety stop
condition only. SO terminal cannot be used for safety function.
Load: 24VDC/0.1A max.
Voltage drop: 3.4V max.
(In case of ‘ON’ state)
SC
Common terminal for S1,S2,SOsignals.
*SC is connected terminal SD internally.
RUN
As output for failure detection and alarm. RUN terminal type is ‘Open
collector output’.
RUN-SE is
OFF(Open): Detect failure or Alarm.
ON(Close): No failure detected.
Attention: To use RUN terminal for monitor output of failure
detection, The parameter No.190 should be set 199
(Alarm output).
Note: This terminal can be used for alarm or to prevent restart only,
no other safety function.
Load: 24VDC/0.1A max.
Voltage drop: 3.4V max.
(In case of ‘ON’ state)
SE
Common terminal for safety RUN signal.
A,C
As output for failure detection. A,C terminal type is ‘Relay output’.
A-C is
OFF(Open): Detect failure or Alarm.
ON(Close): No failure detected.
Attention: To use A,C terminal for monitor output of failure
detection, The parameter No.192 should be set 199
(Alarm output).
Note: This terminal can be used for alarm or to prevent restart only,
no other safety function.
Load: 30VDC/0.3A max.
SD
Signal ground