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3.4 Extension Safety Relay Module Specifications
3.4.1 QS90SR2SP-EX extension safety relay module
3
SPECIFICATIONS
* 3: When connecting an electromagnetic switch and such for output, connect its normally closed
contacts in series between XS0 and XS1.
* 4: Do not connect equipment other than a switch or sensor to each terminal of X0, X1, XS0, and XS1.
* 5: Common terminals for X0 and X1 differ. Pay attention to the printing on the module at wiring. In the
external connection diagram, they are represented as COM (X0) and COM (X1).
Table 3.6 Performance specifications of QS90SR2SP-EX (2/2)
External connection diagram Connector
Pin
number
Signal name
Extension
communication
part
1EA
2EB
3EG
4EP
Start-up input
part
1
XS0
*3*4
2
XS1
*3*4
3Empty
4Empty
Safety input
part
1
COM(X0)
*5
2
X0
*4
3
COM(X1)
*5
4
X1
*4
Safety output
part 1
1Empty
2Z00
3Z10
4Z20
Safety output
part 2
1Empty
2Z01
3Z11
4Z21
COM(X0)
X0
X1
COM(X1)
Switches
Connected to a
main module
or
another extension
module
Connected to another
extension module
Connected to a
main module
or
another extension
module
Connected to another
extension module
Safety circuit part
extension cable
Safety circuit part
extension cable
or
safety part terminating
connector
IN
OUT
Monitor
circuit
Internal
safety circuit
K0 K1
Start-up
switch
MC1
MC0
XS0
XS1
EA
EB
EG
EP
Motor
Z00
MC1
MC0
Z01
Z10
Z11
Z20
M
Z21
Safety relay
COM(X0) COM(X1)