Thyristor units are used in power industrial equipment.
The voltages used in the Thyristor unit can cause severe electrical shock, and could be lethal.
Don't remove the plastic cover.
Don't use this unit in aerospace and nuclear application.
Electric Shock Hazard (Risque the choque électrique)
When thyristor unit has been connected to main supply voltage and is switched off, 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(attention)
Local regulations regarding electrical installation should be rigidly observed.
Safety regulations must be rigidly observed.
Don't bend components to maintain insulation distances.
Protect the unit from high temperature humidity and vibrations.
Don't touch components to prevent electrostatic discharges on them.
Verify that all rating is in line with real needs.
If authorized personnel must measure voltage current etc. on units, take away rings and other jewels
from fingers and hands.
Authorized personnel working on thyristor unit under power supply voltage must work on insulated
board. Be secure that board is not connected to earth.
This listing does not represent a complete enumeration of all necessary safety cautions.
Protection(protection)
CD3000 thyristor unit has a polymeric plastic cover to compliance to International specification IP20.
To understand if IP20 protection is sufficient should be evaluated the installation place.
Open Type Equipment.
Earth(terre)
CD3000 family has isolated heatsink. For safety connect the heatsink to earth to avoid shocks in case that
circuit board or thyristor lose insulation. Earth impedance should be correspondent to local earth
regulation. Periodically the earth efficiency should be inspected.
Electronic supply (alimentation électronique)
CD3000 family electronic circuit should be supplied by dedicated voltage supply for all electronic circuit
but not in parallel with contactor’s coil, solenoids and other inductive or capacitive loads.
It’s recommended to use a shielded transformer.
Electromagnetic compatibility (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 contactor coils should have a filter in parallel.
Emissions (emission)
All thyristor switching at high speed generate some radiofrequency disturbance. CD3000 series
compliance with EMC rules for CE mark. In many installations near electronic devices have not been noted
problems. If radiofrequency devices at low frequency are used near the thyristor unit some precautions
should be taken like line Filters and shielded cables for input signal and for load cables.