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Fuxx Control - ARS 2320 / ARS 2340 Instruction Manual - Kuhnke

Fuxx Control - ARS 2320 / ARS 2340 Instruction Manual - Kuhnke

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<strong>Fuxx</strong> <strong>Control</strong> <strong>ARS</strong> <strong>2320</strong> / <strong>ARS</strong> <strong>2340</strong> KUHNKE Automation<br />

10.1.3 Overcurrent and short-circuit monitoring<br />

The overcurrent and short-circuit monitoring system responds as soon as the current in the DC-link<br />

exceeds three times the maximum current of the controller. It detects short-circuits between two motor<br />

phases and short-circuits at the motor output terminals against the positive and negative reference<br />

potential of the DC-link and against PE. If the error monitoring system detects an overcurrent, the<br />

power output stage will be shut down immediately to guarantee resistance against short-circuits.<br />

10.1.4 Overvoltage monitoring of the DC-link<br />

The overvoltage monitoring system of the DC-link responds as soon as the DC-link voltage exceeds<br />

the operating voltage range. As a result, the power output stage will be shut down.<br />

10.1.5 Temperature monitoring of the heat sink<br />

The heat sink temperature of the power output stage is measured using a linear temperature sensor.<br />

The temperature limit varies from device to device. About 5°C below the limit, a temperature warning<br />

is issued.<br />

10.1.6 Motor monitoring<br />

The <strong>ARS</strong> 2300 servo positioning controller has the following protective functions to monitor the motor<br />

and the connected rotary encoder.<br />

Monitoring of the rotary encoder: An error in the rotary encoder shuts down the power output stage. In<br />

the case of resolvers, the trace signal is measured, for example. In the case of incremental encoders,<br />

the commutation signals are checked. Other "intelligent" encoders have other means of error<br />

detection.<br />

Motor temperature measurement and monitoring: The <strong>ARS</strong> 2300 servo positioning controller has one<br />

digital and one analog input for detecting and monitoring the motor temperature. Due to the analog<br />

signal detection, also non-linear sensors are supported. The following inputs for temperature sensors<br />

can be selected.<br />

At [X6]: Digital input for PTCs, normally closed contacts and normally open contacts.<br />

At [X2A] and [X2B]: Normally closed contacts and analog sensors of the KTY range. Other<br />

sensors (NTC, PTC) require corresponding SW adaptations.<br />

116 E 732 GB<br />

14.12.2006

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