ABB ETL600 Instruction Manual page 228

ABB Switzerland Ltd
Back cover
DANGER
Inserting and removing of plug-in modules
Caution
Unused slots
DANGER
PCB Extenders
DANGER
ESD protection
Caution
ESD
Using HMI600 software
Caution
9-2
1KHW001489-EN
Hazardous voltages and/or hazardous energy level
behind the back cover. Before removing the back
cover, the isolating terminals of the external cables
must be opened or the cables to the terminals must
be disconnected.
Neither removing nor inserting of modules is
permitted during power-up of the equipment.
Preceding to plug in and out of modules the power
supply of the equipment has to be switched OFF.
Unused slots in the equipment subracks must be
covered with blanking plates.
For measuring purposes only the original PCB
extenders P4LM, P3LL and I9BK designed to work
with ETL600 equipment, must be used.
The modules in this equipment contain devices,
which can be damaged by electrostatic discharges.
Appropriate measures must be taken before
unpacking modules or withdrawing them from
equipment racks. Essential precautions to prevent
ESD damage when handling or working on modules
are grounding straps for technical personnel and the
provision of anti-static workbenches. Modules may
only be shipped either in their original packing or
installed in equipment racks.
The link gets disturbed while using the options
'Tuning & Testing', activating a testtone, simulating
alarms, measurement of frequency response &
equalization etc. of the HMI600. Appropriate
measures have to be taken especially in case
protection signal transmission is being used.
November 2005
ETL600
Troubleshooting