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Main applications
< Power amplifier for tension control >
• The power amplifire is used in combination with the closed-loop type tension control unit such as
LE-40MTA-E, LE-40MTB-E, LE-30CTN, etc. tension control unit to amplify the output signal or such
control unit, and to apply the power source to the excitation coil of clutch / brake.
< Manual power source, using external setting type valuable resistor >
• The power amplifier will appear to be a variable current ( or variable voltage ) power source, using
manual operation simply by connecting the variable resistor (8V, 2kW ) to the imput terminal of this
power amplifier.
Since the non-linearity compensation is executed, the opration is easy.
< Semi-automatic tension control unit >
• As described in chapter-2 of this manual, the power amplifier can be also used as semi-automatic
tension control unit by using the LE-5AP operator panel in combination.
• the semi-automatic tension control unit is provided with winding diameter detection function whitch
is intended to ensure the desired tension by controlling the output current automatically in accor-
dance with the winding diameter. It can ensure the simplified open-loop control in whitch no tension
tetector is used.
• Using the LE-5AP operator panel described previously will also allow the basic characteristeic of
power amplifier to be set easily.
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