Vibration Motor Installation Guide

The installation of the vibration motor should only be carried out by authorised and qualified personnel.

Workers must exclusively use tools appropriate to the application.


Fixing of vibration motor

ATO vibration motors can be operated in any position. During installation, the following precautions must be strictly observed:

The mounting surface must be absolutely level (± 0.1 mm flatness tolerance) so that the feet of the vibrator have full-area contact and avoid tension in the housing when tightening the captive screws. The surface should also be free of any paint residue and burn marks. Tension in the enclosure can cause mechanical and/or electrical damage.

Vibration motor

For secure fastening, we recommend a Netter NBS screw connection, consisting of a screw, a special lock washer and a nut (if applicable).

Tightening torques can be found in the table below. Higher tightening torques can cause screws to break or threads to tear. Improper screw connections may cause the vibrator to loosen due to vibration. This can cause personal and property damage!

Each vibration motor must be pre-wired with suitable overload protection. Vibration motor protection switches must be relocked to each other in pairs so that in the event of a motor failure, power to both motors is interrupted to avoid causing uncontrolled vibrations that could damage the system.

Thermal overload protection

Standard equipment for PTC thermistors from case size 170 up to 130°C. For smaller vibrators: available as initial equipment upon request.

If the vibration vibrator is operating in an area with potentially explosive dust (zone 22), a Pct.-thermistor must be connected. This provision does not apply to units without PTC thermistors.

Only use a suitable flexible power cable to connect the vibration motor. The conductors in the supply cable used to connect the vibrator to the power supply must be temperature resistant and of sufficient cross-section to accommodate the length of cable used. The temperature resistance of the cable depends on the maximum surface temperature specified on the nameplate.

When choosing a connecting cable, take into account that the cable is mechanically stressed due to vibration. Recommended cable type for 400 V mains operation, in potentially non-explosive atmospheres. For other voltages or other environmental conditions, the cables must be adapted and designed accordingly.

Do not open the junction box cover in a potentially explosive atmosphere or when voltage is applied. If the junction box cover or unbalance cover is open, check the condition and proper positioning of the seals. Damaged seals must be replaced immediately.

Cables must be routed carefully. Care must be taken to ensure that the cables are not worn by the vibrating parts. The correct condition of the cables and their plugs must be checked regularly (usually every six months). Detected errors should be eliminated immediately. Protects cables from heat, lubricants and sharp edges.

Tighten the terminal block nuts to the specified torque. Remember to put these safety washers between the ring and nut and the vibration damping insert.

The wire ends must be provided with insulated cable lugs to prevent the strands from splaying. The maximum dimensions of the cable lugs can be found in the table below.

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