RELIANCE 0-52012 Logic control card

Note the followings for supplied regenerative resistors of 11 kW to 22 kW servo amplifiers because they do not have protective covers. Touching the resistor will cause a burn because the surface of the parts is a resistive element and very high temperature. Even if the power turned off, touching the resistor will cause an electric shock because the capacitor of the servo amplifier is charged for a while.

When using the regenerative resistors 

supplied to the servo amplifier, the specified number of resistors (4 or 5 resistors) must be connected in series. If they are connected in parallel or in less than the specified number, the servo amplifier may become faulty and/or the regenerative resistors burn. Install the resistors at intervals of about 70 mm. Cooling the resistors with two cooling fans (92 × 92, minimum air flow: 1.0 m3 ) improves the regeneration capability. In this case, set "_ _ 0 E" in [Pr. 2].

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