Electrical Connection - Siemens SITRANS FMS500 Operating Instructions Manual

Connecting
5.3 Electrical connection
5.3

Electrical connection

Safety requirement for DC power supply input
The DC power supply version is intended to be supplied from one of the following:
• Isolated limited energy source UL61010-1, 3rd ed cl. 9.4
• Limited power source per UL62368-1
• PS2 per UL62368-1
• Class 2 per NEC
Safety requirement for power supply for communication terminals
When applicable, the communication terminals are intended to be supplied from one of the
following:
• Isolated limited energy source UL61010-1, 3rd ed cl. 9.4
• Limited power source per UL62368-1
• PS2 per UL62368-1
• Class 2 per NEC
Safety requirement for power supply for communication terminals
The device is intended to be supplied from an isolated Limited Energy Source per UL61010-1,
3rd ed cl. 9.4 or Limited Power Source per UL62368-1 or Class 2 per NEC.
Disconnecting the device from power
To be able to disconnect the device from the electrical supply source, install an external switch
or a circuit breaker upstream to the device.
Choose a position so that it is easy to operate the disconnecting protection device.
Grounding
Connect mains protective ground earth to PE terminal in accordance with diagram (due to class
1 power supply).
High vibration environment
Use relay output only in NO mode in an environment with high vibration.
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WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
Operating Instructions, 01/2024, A5E52677520-AA
SITRANS FMS500