Siemens SIRIUS 3RA6 System Manual page 29

Table 4- 3 Safe isolation (3RA64/65 compact starter with IO-Link)
Control IO-Link
circuit and
Auxiliary
supply
power
circuit
supply
Limit switch Y1, Y2, Y3,
Auxiliary External
circuit auxiliary
switch
Main circuit
In order for the "safe isolation" of circuits to be achieved, an individual fault must not be able
to trigger a voltage overspill from one circuit into another. The kinds of fault to be taken into
account include twisted or loose conductive parts, twisted solder pins, broken winding wire,
missing screws or broken barriers within a device.
SIRIUS 3RA6 compact starter
System Manual, 09/2014, NEB560060102000/RS-AA/006
Control circuit and supply circuit
IO-Link
Terminal L+, C/Q,
labeling L-
L+, C/Q, L- —
A1+, A2- —
—
Y4
..NO/..NC 300 V
1L1/3L2/5L3 690 V
2T1/4T2/6T3
Auxiliary Limit switch
power supply
A1+/A2- Y1/Y2, Y3/Y4
— —
— —
— —
300 V —
690 V 690 V
Application planning
4.2 Safe isolation
Auxiliary Main circuit
circuit
External
auxiliary
switch
..NO/..NC 1L1/3L2/5L3
2T1/4T2/6T3
300 V 690 V
300 V 690 V
— 690 V
— —
— —
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