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REVO KP3User’s manual
Important warnings for safety
The unit are integral part of industrial equipments.
When it is supply, the unit is subject to dangerous tensions. Don’t remove the plastic cover.
Don’t use this unit in aerospace and nuclear application.
Electric Shock Hazard (Rischi di scosse elettriche, Risque de choque électrique)
When thyristor unit has been connected to main supply voltage and is switched o, before to touch it be
secure that the unit is isolated and wait at least one minute to allow discharging internal capacitors. Thus be
secure that:
• access to thyristor unit is only permitted to specialised personnel;
• the authorised personnel must read this manual before to have access to the unit;
• the access to the unit must be denied to unauthorised personnel.
Important warnings (Avvertenze importanti, attention)
During the operations with units under tension, local regulations regarding electrical installation should be
rigidly observed:
• Respect the internal safety rules.
• Don’t bend components to maintain insulation distances.
• Protect the units from high temperature humidity and vibrations.
• Don’t touch components to prevent electrostatic discharges on them.
• Verify that the size is in line with real needs.
• To measure voltage current etc. on unit, remove rings and other jewels from ngers and hands; also make
sure that the instruments are in good condition.
• Authorized personnel that work on thyristor unit under power supply voltage must be on insulated board
This listing does not represent a complete enumeration of all necessary safety cautions
Protection (Protezione, Protection)
The protection of the REVO series units complies with international specications with IP20 protection degree.
To assess whether the IP20 protection is sucient, consider the place where the units are installed.
Earth (Messa a terra, Terre)
For safety, the Thyristor unit with isolated heat-sink must be connected to earth.
Earth impedance should be correspondent to local earth regulation. Periodically the earth eciency should
be inspected.
Electromagnetic compatibility (Compatibilità elettromagnetica, Compatibilité électromagnétique)
Our thyristor units have an excellent immunity to electromagnetic interferences if all suggestions contained in
this manual are respected. In respect to a good Engineering practice, all inductive loads like solenoids contac-
tor coils should have a lter in parallel
Emissions (Emissioni, Emission)
All solid-state power controllers emit a certain amount of radio-frequency energy because of the fast swi-
tching of the power devices. The Thyristor unit are in accord with the EMC norms, CE mark.
In most installations, near by electronic systems will experience no diculty with interference. If very sensitive
electronic measuring equipment or low-frequency radio receivers are to be used near the unit, some special
precautions may be required. These may include the installation of a line supply lter and the use of screened
(shielded) output cable to the load.
