General information regarding safety
Only skilled qualified personnel are allowed to
perform the described work on the expansion
modules.
Only skilled qualified electricians are allowed to
work on the electrical system.
For all work performed on the EASYLAB
components, the following regulations and
guidelines must be complied with. This applies in
particular to the following German country specific
regulations or as appropriate in the country where
the installation is taking place:
• Equipment and Product Safety Laws (GPSG)
• Industrial Health and Safety Regulations
(BetrSichV)
• Accident Prevention Regulations
(BGV A1, BGV A3)
General safety measures
• Large temperature differences
Condensation can damage the electronics
beyond repair. If the expansion module has been
kept in an unheated area, wait at least two hours
before switching on the supply voltage for
commissioning.
• Electrostatic charge
Electrostatic charge can damage the electronics.
To avoid this, first touch an equipotentially
bonded metal surface, e.g.
a water pipe, for electrical earthing before you
remove the expansion module from its protective
wrapping. Avoid skin contact with any
components or printed circuits on the expansion
module or the main PCB.
• Weight
The expansion PCB is equipped with a
transformer that has a comparatively high
weight. To avoid injury and damage, be sure to
grip the PCB properly and to handle it with care.
• Installing the PCB
Tighten the mounting screws only hand-tight to
avoid damage to the PCB or to the fixing points
in the casing.
• Foreign matter and liquids
If liquid gets onto the PCB or inside the expansion
module, let the expansion module completely dry
before commissioning. Remove foreign matter, if
any.
If the device emits a smell or smoke, have it
checked by the manufacturer.
4
EM-TRF · EM-TRF-USV Operating and Installation Manual / Leaflet no. M375EV5 (
8/2018
)
2 Safety and correct use
Correct use
The EM-TRF and EM-TRF-USV expansion modules
are used to connect TCU 3 EASYLAB controllers
and TAM adapter modules to a 230 V AC supply
voltage.
• Use the expansion module only with a TCU3
EASYLAB controller or a TAM adapter module.
• Do not connect EASYLAB controllers with an
EM-TRF or EM-TRF-USV expansion module to
a 24 V power supply.
• Only connect the expansion module to the
dedicated socket on the main PCB of the
TCU3 or TAM.
• Observe the technical data of the expansion
module.
Incorrect use
Do not use the expansion module outdoors, in wet
areas, or in potentially explosive atmospheres.
Residual risks
Uninterruptible power supply is provided only
with the EM-TRF-USV being connected to a fully
charged battery pack. For maximum operating
times with uninterrupted power supply refer to
the technical data.