Fagor DDS, Hardware Manual

Page: 20 / 386

24
20
DDS
HARDWARE
Ref.1310
 Make sure that the ground connection has been made.
In order to avoid electric shocks, before turning the unit on, make sure that the ground connection
has been made. It is up to the installer to comply with current regulations and standards regarding
the ground connection of the servo drive system.
Do not use the conduit as ground protection, use the protection ground wire inside the conduit.
 Only use tools with electrical insulation.
Many components of the product, including the pc board, work with mains voltage. Don’t touch
them.
Do not touch unshielded components or pins when under voltage.
 Make sure not to work in humid environments.
To avoid electric shocks, always work in environments where relative humidity is lower than 90%
without condensation at 45 °C (113 °F).
 Make sure not to work in explosive environments.
In order to avoid risks, harm or damages, do not work in explosive environments.
 The motor generates voltage when turning the shaft. Before working on the servo system,
lock the motor shaft to prevent it from turning.
 Do not short-circuit the terminals of the DC bus nor those of the capacitors of the DC bus.
 Avoid touching the hot braking resistor.
 Don’t allow flammable or heat sensitive substances near the braking resistor.
 Foreign conducting elements, dust or liquids can cause the STO safety function to stop
working. Do not use the STO safety function unless the system has been protected against
pollution by conducting substances.
 Make sure that any conducting element, no matter how small, cannot get inside the unit
(pollution degree 2) because it could render the safety function inoperative
 Follow thoroughly the measures given by EMC.
Malfunctions (due to ignoring electromagnetic compatibility) can cause unexpected system behav-
ior. Do the whole wiring carefully according to the measures given by EMC. Do not adjust the unit
with unknown data. Start the system up carefully. Ignoring these warning can cause serious injury
or even death. Follow thoroughy the measures given by EMC to avoid risks and personal injury.
Precautions against damage to the product
 Work environment.
This unit is ready to be used in industrial environments and comply with the current directives and
regulations of the European Community.
Fagor Automation shall not be held responsible for any damage that could suffer or cause when in-
stalled under other conditions (residential or domestic environments).
 Install the unit in the right place.
We recommend that, whenever possible, the servo drive system be installed away from coolants,
chemicals, blows, etc. that could damage it. Keep foreign elements such as chips, screws or wire
pieces away from the units. Foreign conducting elements may damage the product or generate pa-
rasite voltages.
Provide good heat dissipation.
This unit meets the European directives on electromagnetic compatibility. Nevertheless, it is recom-
mended to keep it away from sources of electromagnetic disturbance, such as:
• Powerful loads connected to the same mains as the unit.
• Portable nearby transmitters (radio-telephones, CB radio emitters).
• Nearby radio/TV transmitters.
• Nearby arc welding machines.
• Nearby high voltage lines ...
 Enclosures.
It is up to the manufacturer to guarantee that the enclosure where the unit has been installed
meets all the relevant directives of the European Union.
 Connecting the power supply to ground.
The zero Volt point of the external power supply must be connected to the main ground point of
the machine. Poor grounding increases the risk of electrical shock.