WIKA FSD-4, Operating Instructions Manual

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14399527.01 05/2021 EN/DE/FR/ES
14 WIKA operating instructions flow switch, model FSD-4
EN
5. Commissioning, operation
The power supply for the flow switch must be made via an energy-limited electric circuit in accordance with section 9.4
of UL/EN/IEC 61010-1 or an LPS to UL/EN/IEC 60950-1 or class 2 in accordance with UL1310/UL1585 (NEC or CEC).
The voltage supply must be suitable for operation above 2,000 m above sea level, should the flow switch be used at
this altitude.
Requirement for shielding and grounding
The flow switch must be grounded in accordance with the grounding concept of the plant.
The instrument must be grounded via the process connection.
Connecting the instrument
1. Assemble the mating connector.
→ see chapter “Pin assignment”
2
.
Establish the plug connection.
Pin assignment
Circular connector M12 x 1 (4-pin)
4 3
1 2
U+ 1
U- 3
S+ / SP2 1) 2
SP1 4
1)
Depending on the configuration of the output signals
Legend:
U+ Positive power supply terminal
U- Negative power supply terminal
SP1 Switching output 1
SP2 Switching output 2
S+ Analogue output
C Communication with IO-Link
Circular connector M12 x 1 (5-pin)
U+ 1
U- 3
S+ 5
SP1 / C 4
SP2 2