ETL600 1KHW001489-EN ABB Switzerland Ltd
O4LE
DANGER
The phone interface on the module O4LE generates
dangerous voltage up to 100 V. Don’t use the
module without upper and lower cover plate. Do not
ble
connector and the leads of the external cable.
G4AI
touch the open pins of the service phone connector,
the leads of its cable, the pins of the external ca
Hazardous voltages and/or hazardous energy level
on the module a he
Do not touch the module and the cable leads.
DANGER
nd t cable.
Caution
Connecting a load between terminals NO (normally
t NO or NC.
open) and NC (normally closed) is not allowed.
Use only one contact se
Power supplies connected to alarm relay contacts
must be short cir
Caution
cuit and over current protected.
Electrical strength test
Caution
Do not repeat any electrical strength tests.
Improper test methods can cause severe damage to
the equipment.
Electric strength and earth continuity tests have
been performed in the factory.
Commissioning
Caution
Do not close/establish the connections to the
protection devices until NSD600 is properly
commissioned.
Safety Instructions November 2005 2-7
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