Siemens SIMATIC NET PROFIBUS - Manual (Page 369)

Infrared Link Modul (ILM) 6ZB5530–3AC30–0BA1
27 Copyright
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by Siemens
7 Installation and Startup
7.1 Notes on Safety
â Use the PROFIBUS ILM only as described in this “description and operating instructions”.
â
Never connect the PROFIBUS ILM to the mains power supply 110 V – 240 V.
â
In particular, take note of all the warnings and notes relating to safety.
â The operating voltage must be a safety extra-low voltage complying with IEC 950/EN 60 950/VDE 0805 of
maximum +30V (typically
) 24 V). According the CUL approval you should connect the PROFIBUS ILM
only at the load side of a Class 2 or Class 3 Power source as defined by the National Electric Code
(NEC), Article 725–2 and the Canadian Electrical Code (CEC).
â The voltage connected to the signalling contact must be a safe extra-low voltage complying with IEC
950/EN 60 950/ VDE 0805 According the CUL approval you should connect the signalling contact only at
the load side of a Class 2 or Class 3 power source as defined by the National Electric Code (NEC), Article
725–2 and the Canadian Electrical Code (CEC).
â Wiring the PROFIBUS ILM, pay attention to the wiring methods described in NEC article 725–52, 725–54,
725–61 and 725–71.
â Select a site to install the module so that the climatic limit values listed in the technical specifications are
not exceeded.
â The device emits infrared light in the non-visible range. According to the currently valid regulations, the
PROFIBUS ILM is included in the class of devices subject to the regulations covering laser protection IEC
60 825–1 although the device does not include laser equipment. The emitted infrared power is below the
limit values of laser protection class 1.