This section outlines the Amada Promecam Installation Requirements
3.1 – AMADA PROCAM PRESS BRAKE ELECTRICAL CONNECTION
The proper operation of an electrical system depends on the quality of the power supply, it should be stable and free of disturbances. Your Amada Promecam Installation should be planned and carried out so as to meet current applicable regulations.
3.1.1 – GENERAL MAINS CHARACTERISTICS
- Three-phase current (depending on mains)
- 10% to +10% in stable rating
- 20% to +20% transient rating (20 ms)
50% of the nominal value during a maximum of 5 ms
50/60 Hz (depending on mains)
Electrical power supply
The specialized line to be exclusively reserved for the system from the general LOW VOLTAGE board. The whole system is powered by a single 3-phase cable with earth (possibly also with neutral)
3.1 .2 – EARTH
In pursuance with applicable standards any equipment which is not provided with double installation requires an earthing connector. This is also required at the operational level and for floor earth drainage of electrical noise interferences.
- The cross-section of the earthing conductor must be sufficient. For maximum security earthing distribution should be made in a STAR CONFIGURATION beginning from the power board terminal. As in any other electrical installation, the quality of the ground connection should be verified periodically by an approved organization.
- The earthing resistance measured at the bar closest to the earth terminal should be less than 6 ohms.
- The earthing conductor (green and yellow), is reserved exclusively for the system. It is connected directly to the earthing bar.
3.1.3 – INTERFERENCES RELATED TO MAINS AND ENVIRONMENT
IMPORTANT: DO NOT UNDER ANY CIRCUMSTANCES WELD A PIECE TO THE MACHINE. YOU COULD DAMAGE THE MECHANICAL, ELECTRICAL AND ELECTRONIC COMPONENTS.
The distribution network introduces some interferences. (micro-powercuts, frequency drifts, harmonics, interferences, etc.) These might be detrimental to the correct operation of the system. So, some electronic components might, therefore, be submitted to abnormal or excessive voltages and currents causing their damage beyond repair.
It may be necessary to provide for some adapter elements without galvanic connection to mains (voltage stabilizer, rectifier, converter, transformer, insulation transformer, etc. ). If required the quality of this electrical power supply should be checked by an approved organization and analysis of the results should determine the required equipment type.
The following interference must be considered as disturbing for any electronic system:
These are very critical in an environment with relatively low ambient humidity: people or moving assemblies often create a discharge of several thousand volts by touching a door handle or a metal upright or, even worse, the chassis. Therefore, it is necessary to provide for an antistatic environment (anti-static carpet for example).
Transient on the mains power supply
Transient is electrical noise pulses propagated along with the mains leads which may affect system operation. Their origin may be internal: motor, lift, refrigerator, air conditioning unit, a fluorescent tube or any other machine generating mains noise: or external: stormy weather, neighboring plant …Transient specifications accepted by the system are 50% of the nominal voltage for a maximum duration of 5 ms.
The charges accumulated in stormy conditions result in transient on the mains or on the connecting cables.
A variable magnetic field induces a voltage into a closed-circuit creating considerable interference. Cathode ray tubes are sensitive to magnetic fields. Their sensitivity is materialized by faulty chromatics of the image or of its geometry. These are therefore fitted with protective shielding.
Medium- or high-frequency electromagnetic radiation
This interference type may be the origin of a large number of problems in the systems (operational amplifiers, DP memory). Generally, the magnitude of such disturbances depends of the radiation duration and intensity. They may be due to RADAR installations (near airports for instance) or to radio frequency transmitters (military, civil, Police, Stations, FM .. ) or even to defective or badly
filtered discharge tubes. Walkie-talkies can produce the same effect when used near input channels. The reference value to be taken into consideration corresponds to an 0.2 to 0.5 VIM field in a frequency range of 10KHz to 1 GHz.
3.1.4 – CHARACTERISTICS OF THE AMADA PROMECAM PRESS BRAKE MACHINE POWER SUPPLY CABLE
|MODELS (in tons)||POWER CABLE (section in mm2 for a line ≤ 20 meters)|
We recommend the installation of a circuit protector or breaker at the head of the line.
Cable may be led in from the floor (fig 3.2) or on an aerial line (fig 3. 1).
The power cable should, in no event, pass through the control box or channel located on its front.
The main switch located in the electrical cabinet is designed to receive up to three safety padlocks. We advise that you immediately install a lock so as to prevent untimely power-up.
3.1.5 – CHECKING THE POWER SUPPLY VOLTAGE
Check your mains voltage. This value should be specified to the AMADA agent who will connect and start your machine
3.2 – PNEUMATIC SYSTEM
Pneumatic installation is required if your machine is fitted with the “all or nothing” traverse motion.
– Network pressure: 6 bars + 1
– Maximum rate
– Flow: 5 liters/minute under 6 bars
COMPRESSED AIR SUPPLY DIAGRAM
Your machine is fitted with a “filter – pressure- valve – lubricator” conditioning assembly (if the “all or nothing” traverse motion systems installed).
You should check the levels in the filter and lubricator elements regularly.
Top up when unpressurized using one of the following lubricants:
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